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|
||
"authors": [
|
||
"ISO/TC 211"
|
||
],
|
||
"href": "https://www.iso.org/standard/74039.html",
|
||
"title": "Geographic information -- Referencing by coordinates",
|
||
"publisher": "ISO",
|
||
"status": "International Standard",
|
||
"date": "2019",
|
||
"id": "iso-19111-2019"
|
||
},
|
||
"iso-C": {
|
||
"href": "http://www.daml.org/2001/09/countries/iso",
|
||
"title": "ISO Country instance file. "
|
||
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|
||
"mf-13": {
|
||
"authors": [
|
||
"X. Ma",
|
||
"P. Fox"
|
||
],
|
||
"date": "2013",
|
||
"href": "http://dx.doi.org/10.1007/s12145-013-0110-x",
|
||
"title": "Recent progress on geologic time ontologies and considerations for future works, Earth Sci. Informatics. 6 31–46. ",
|
||
"id": "mf-13"
|
||
},
|
||
"oe-06": {
|
||
"href": "http://www.w3.org/2006/time-entry",
|
||
"title": "OWL code of the entry sub-ontology of time. "
|
||
},
|
||
"ogc-topic-2": {
|
||
"authors": [
|
||
"Roger Lott"
|
||
],
|
||
"title": "OGC Abstract Specification Topic 2 - Geographic information - Referencing by coordinates",
|
||
"date": "2019",
|
||
"href": "http://docs.opengeospatial.org/as/18-005r4/18-005r4.html",
|
||
"id": "ogc-topic-2"
|
||
},
|
||
"ot-06": {
|
||
"href": "http://www.w3.org/2006/time",
|
||
"title": "OWL code of the time ontology. "
|
||
},
|
||
"owl-S": {
|
||
"href": "http://www.daml.org/services/owl-s/",
|
||
"title": "OWL-S homepage. "
|
||
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|
||
"pa-05": {
|
||
"authors": [
|
||
"F. Pan"
|
||
],
|
||
"date": "2005",
|
||
"href": "https://pdfs.semanticscholar.org/daf3/2ec8803b0749952ee89be3644303cb6b3ff2.pdf",
|
||
"title": "A Temporal Aggregates Ontology in OWL for the Semantic Web. In: Proceedings of the AAAI Fall Symposium on Agents and the Semantic Web, Arlington, Virginia, pp. 30-37. "
|
||
},
|
||
"ph-04": {
|
||
"authors": [
|
||
"F. Pan",
|
||
"J.R. Hobbs"
|
||
],
|
||
"date": "2004",
|
||
"href": "http://www.isi.edu/%7Ehobbs/time/pub/pan-hobbs-AAAI-SSS04.pdf",
|
||
"title": "Time in OWL-S. In: Proceedings of the AAAI Spring Symposium on Semantic Web Services, Stanford University, CA, pp. 29-36. "
|
||
},
|
||
"ph-05": {
|
||
"authors": [
|
||
"F. Pan",
|
||
"J.R. Hobbs"
|
||
],
|
||
"date": "2005",
|
||
"href": "http://www.isi.edu/%7Ehobbs/FLAIRS-05.pdf",
|
||
"title": "Temporal Aggregates in OWL-Time. In Proceedings of the 18th International Florida Artificial Intelligence Research Society Conference (FLAIRS), Clearwater Beach, Florida, pp. 560-565, AAAI Press. "
|
||
},
|
||
"pr-OS": {
|
||
"href": "http://www.daml.org/services/owl-s/0.9/Process.owl",
|
||
"title": "The process file of the OWL-S 0.9 release"
|
||
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|
||
"rc-14": {
|
||
"href": "http://nvlpubs.nist.gov/nistpubs/jres/109/2/j92cur.pdf",
|
||
"title": "The Remarkable Metrological History of Radiocarbon Dating [II]",
|
||
"date": "March-April 2004",
|
||
"authors": [
|
||
"Journal of Research of the National Institute of Standards and Technology"
|
||
],
|
||
"id": "rc-14"
|
||
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|
||
},
|
||
"issueBase": "https://www.w3.org/2015/spatial/track/issues/",
|
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|
||
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|
||
}</script>
|
||
<link rel="stylesheet" href="./Time Ontology in OWL_files/W3C-CRD"></head>
|
||
|
||
<body class="h-entry informative toc-inline"><p id="toc-nav"><a id="toc-jump" href="https://www.w3.org/TR/owl-time/#toc"><span aria-hidden="true">↑</span> <span>Jump to Table of Contents</span></a><a id="toc-toggle" href="https://www.w3.org/TR/owl-time/#toc"><span aria-hidden="true">→</span> <span>Pop Out Sidebar</span></a></p><div class="head">
|
||
<p class="logos"><a class="logo" href="https://www.w3.org/"><img crossorigin="" alt="W3C" src="./Time Ontology in OWL_files/W3C" width="72" height="48">
|
||
</a><a class="logo" href="http://www.opengeospatial.org/"><img crossorigin="" alt="OGC" src="./Time Ontology in OWL_files/ogc_logo.png" width="147" height="68">
|
||
</a></p>
|
||
<h1 id="title" class="title">Time Ontology in OWL</h1>
|
||
<p id="w3c-state"><a href="https://www.w3.org/standards/types#CRD">W3C Candidate Recommendation Draft</a> <time class="dt-published" datetime="2022-11-15">15 November 2022</time></p>
|
||
<details open="">
|
||
<summary>More details about this document</summary>
|
||
<dl>
|
||
<dt>This version:</dt><dd>
|
||
<a class="u-url" href="https://www.w3.org/TR/2022/CRD-owl-time-20221115/">https://www.w3.org/TR/2022/CRD-owl-time-20221115/</a>
|
||
</dd>
|
||
<dt>Latest published version:</dt><dd>
|
||
<a href="https://www.w3.org/TR/owl-time/">https://www.w3.org/TR/owl-time/</a>
|
||
</dd>
|
||
<dt>Latest editor's draft:</dt><dd><a href="https://w3c.github.io/sdw/time/">https://w3c.github.io/sdw/time/</a></dd>
|
||
<dt>History:</dt><dd>
|
||
<a href="https://www.w3.org/standards/history/owl-time">https://www.w3.org/standards/history/owl-time</a>
|
||
</dd><dd>
|
||
<a href="https://github.com/w3c/sdw/commits/">Commit history</a>
|
||
</dd>
|
||
|
||
<dt>Implementation report:</dt><dd>
|
||
<a href="https://www.w3.org/2015/spatial/wiki/OWL_Time_Ontology_adoption">https://www.w3.org/2015/spatial/wiki/OWL_Time_Ontology_adoption</a>
|
||
</dd>
|
||
|
||
|
||
|
||
<dt>Editors:</dt><dd class="editor p-author h-card vcard" data-editor-id="1796">
|
||
<a class="u-url url p-name fn" href="http://people.csiro.au/Simon-Cox">Simon Cox</a><a class="p-name orcid" href="https://orcid.org/0000-0002-3884-3420"><svg width="16" height="16" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256">
|
||
<style>
|
||
|
||
.st1 {
|
||
fill: #fff;
|
||
}
|
||
|
||
</style>
|
||
<path d="M256 128c0 70.7-57.3 128-128 128S0 198.7 0 128 57.3 0 128 0s128 57.3 128 128z" fill="#a6ce39"></path>
|
||
<path class="st1" d="M86.3 186.2H70.9V79.1h15.4v107.1zM108.9 79.1h41.6c39.6 0 57 28.3 57 53.6 0 27.5-21.5 53.6-56.8 53.6h-41.8V79.1zm15.4 93.3h24.5c34.9 0 42.9-26.5 42.9-39.7C191.7 111.2 178 93 148 93h-23.7v79.4zM88.7 56.8c0 5.5-4.5 10.1-10.1 10.1s-10.1-4.6-10.1-10.1c0-5.6 4.5-10.1 10.1-10.1s10.1 4.6 10.1 10.1z"></path>
|
||
</svg></a> (<a class="p-org org h-org" href="https://www.csiro.au/">CSIRO</a>)
|
||
</dd><dd class="editor p-author h-card vcard" data-editor-id="59886">
|
||
<span class="p-name fn">Chris Little</span><a class="p-name orcid" href="https://orcid.org/0000-0002-1442-3712"><svg width="16" height="16" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 256 256">
|
||
<style>
|
||
|
||
.st1 {
|
||
fill: #fff;
|
||
}
|
||
|
||
</style>
|
||
<path d="M256 128c0 70.7-57.3 128-128 128S0 198.7 0 128 57.3 0 128 0s128 57.3 128 128z" fill="#a6ce39"></path>
|
||
<path class="st1" d="M86.3 186.2H70.9V79.1h15.4v107.1zM108.9 79.1h41.6c39.6 0 57 28.3 57 53.6 0 27.5-21.5 53.6-56.8 53.6h-41.8V79.1zm15.4 93.3h24.5c34.9 0 42.9-26.5 42.9-39.7C191.7 111.2 178 93 148 93h-23.7v79.4zM88.7 56.8c0 5.5-4.5 10.1-10.1 10.1s-10.1-4.6-10.1-10.1c0-5.6 4.5-10.1 10.1-10.1s10.1 4.6 10.1 10.1z"></path>
|
||
</svg></a> (<a class="p-org org h-org" href="http://www.metoffice.gov.uk/">Met Office</a>)
|
||
</dd>
|
||
|
||
|
||
<dt>Feedback:</dt><dd>
|
||
<a href="https://github.com/w3c/sdw/">GitHub w3c/sdw</a>
|
||
(<a href="https://github.com/w3c/sdw/pulls/">pull requests</a>,
|
||
<a href="https://github.com/w3c/sdw/issues/new/choose">new issue</a>,
|
||
<a href="https://github.com/w3c/sdw/issues/">open issues</a>)
|
||
</dd><dd><a href="mailto:public-sdw-comments@w3.org?subject=%5Bowl-time%5D%20YOUR%20TOPIC%20HERE">public-sdw-comments@w3.org</a> with subject line <kbd>[owl-time] <em>… message topic …</em></kbd> (<a rel="discussion" href="https://lists.w3.org/Archives/Public/public-sdw-comments">archives</a>)</dd>
|
||
|
||
<dt>Editors of 2006 Working Draft</dt><dd>
|
||
Jerry R. Hobbs
|
||
</dd><dd>
|
||
Feng Pan
|
||
</dd><dt>OGC Document Number</dt><dd>
|
||
OGC 16-071r3
|
||
</dd>
|
||
</dl>
|
||
</details>
|
||
|
||
|
||
<p class="copyright">
|
||
<a href="https://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a>
|
||
©
|
||
2022
|
||
|
||
<a href="https://www.w3.org/"><abbr title="World Wide Web Consortium">W3C</abbr></a><sup>®</sup> (<a href="https://www.csail.mit.edu/"><abbr title="Massachusetts Institute of Technology">MIT</abbr></a>,
|
||
<a href="https://www.ercim.eu/"><abbr title="European Research Consortium for Informatics and Mathematics">ERCIM</abbr></a>, <a href="https://www.keio.ac.jp/">Keio</a>,
|
||
<a href="https://ev.buaa.edu.cn/">Beihang</a>). W3C
|
||
<a href="https://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>,
|
||
<a href="https://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a> and
|
||
<a rel="license" href="https://www.w3.org/Consortium/Legal/2015/copyright-software-and-document" title="W3C Software and Document Notice and License">permissive document license</a> rules apply.
|
||
</p>
|
||
<hr title="Separator for header">
|
||
</div>
|
||
|
||
<section id="abstract" class="introductory"><h2>Abstract</h2>
|
||
<p>OWL-Time is an OWL-2 DL ontology of temporal concepts, for describing the temporal properties of
|
||
resources in the world or described in Web pages. The ontology provides a vocabulary for expressing facts about
|
||
topological (ordering) relations among instants and intervals, together with information about durations, and about
|
||
temporal position including date-time information. Time positions and durations may be expressed using either the conventional (Gregorian) calendar and clock, or using another temporal reference system such as Unix-time, geologic time, or different calendars.</p>
|
||
<p style="text-align: center;">The namespace for OWL-Time terms is <code>http://www.w3.org/2006/time#</code></p>
|
||
<p style="text-align: center;">The suggested prefix for the OWL-Time namespace is <code>time</code></p>
|
||
<p style="text-align: center;">The OWL-Time ontology is available <a href="https://raw.githubusercontent.com/w3c/sdw/gh-pages/time/rdf/time.ttl">here</a>.</p>
|
||
<p style="text-align: center;">An ontology of individuals for the Gregorian calendar (months) is available <a href="https://raw.githubusercontent.com/w3c/sdw/gh-pages/time/rdf/time-gregorian.ttl">here</a>.</p>
|
||
</section>
|
||
|
||
<section id="sotd" class="introductory"><h2>Status of This Document</h2><p><em>This section describes the status of this
|
||
document at the time of its publication. A list of current <abbr title="World Wide Web Consortium">W3C</abbr>
|
||
publications and the latest revision of this technical report can be found
|
||
in the <a href="https://www.w3.org/TR/"><abbr title="World Wide Web Consortium">W3C</abbr> technical reports index</a> at
|
||
https://www.w3.org/TR/.</em></p>
|
||
<p><strong>For OGC -</strong> This is a Public Draft of a document prepared by the Spatial Data on the Web Working Group
|
||
(<a href="https://www.w3.org/2021/sdw/">SDWWG</a>)
|
||
— a joint <abbr title="World Wide Web Consortium">W3C</abbr>-OGC project (see <a href="https://www.w3.org/2021/10/sdw-charter.html">charter</a>).
|
||
The document is prepared following <abbr title="World Wide Web Consortium">W3C</abbr> conventions. Comments regarding this document are welcome - please submit them in the <a href="https://github.com/w3c/sdw/issues">issue tracker</a>. Recipients of this document are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to provide supporting documentation. </p>
|
||
|
||
<p>New classes and properties are introduced in this revision of OWL-Time. The new elements primarily relate to relaxing the limitation that time position uses only the Gregorian Calendar, and are placed in a logical hierarchy in relation to the original elements. While there is less implementation evidence for these than the elements from the 2006 version, the new elements are essential to satisfying key requirements in the revision. </p>
|
||
<p>However, a small number of other new elements merit additional explanation: </p>
|
||
<ol>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:hasXSDDuration">:hasXSDDuration</a></code> allows use of the compact xsd:duration element to describe the extent of a temporal entity. This complements existing predicates used with XSD datatypes, and was an inexplicable omission from the original ontology. </li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:MonthOfYear">:MonthOfYear</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:monthOfYear">:monthOfYear</a></code> complement :DayOfWeek and :dayOfWeek to support vernacular names for months as well as days. </li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:hasTime">:hasTime</a></code> is a completely generic predicate for associating a temporal entity with anything. A number of generic predicates suitable for use directly in applications were requested, but in general were deemed undesirable in an ontology dealing with the description of time elements rather than their use. This one only was included for users unwilling or unable to define their own semantics. </li>
|
||
</ol>
|
||
<p>
|
||
This document was published by the <a href="https://www.w3.org/groups/wg/sdw">Spatial Data on the Web Working Group</a> as
|
||
a Candidate Recommendation Draft using the
|
||
<a href="https://www.w3.org/2021/Process-20211102/#recs-and-notes">Recommendation track</a>.
|
||
</p><p>Publication as a Candidate Recommendation does not
|
||
imply endorsement by <abbr title="World Wide Web Consortium">W3C</abbr> and its Members. A Candidate Recommendation Draft integrates
|
||
changes from the previous Candidate Recommendation that the Working Group
|
||
intends to include in a subsequent Candidate Recommendation Snapshot.</p><p>
|
||
This is a draft document and may be updated, replaced or obsoleted by other
|
||
documents at any time. It is inappropriate to cite this document as other
|
||
than work in progress.
|
||
|
||
</p><p>
|
||
|
||
This document was produced by a group
|
||
operating under the
|
||
<a href="https://www.w3.org/Consortium/Patent-Policy/"><abbr title="World Wide Web Consortium">W3C</abbr> Patent
|
||
Policy</a>.
|
||
|
||
|
||
<abbr title="World Wide Web Consortium">W3C</abbr> maintains a
|
||
<a rel="disclosure" href="https://www.w3.org/groups/wg/sdw/ipr">public list of any patent disclosures</a>
|
||
made in connection with the deliverables of
|
||
the group; that page also includes
|
||
instructions for disclosing a patent. An individual who has actual
|
||
knowledge of a patent which the individual believes contains
|
||
<a href="https://www.w3.org/Consortium/Patent-Policy/#def-essential">Essential Claim(s)</a>
|
||
must disclose the information in accordance with
|
||
<a href="https://www.w3.org/Consortium/Patent-Policy/#sec-Disclosure">section 6 of the <abbr title="World Wide Web Consortium">W3C</abbr> Patent Policy</a>.
|
||
|
||
</p><p>
|
||
This document is governed by the
|
||
<a id="w3c_process_revision" href="https://www.w3.org/2021/Process-20211102/">2 November 2021 <abbr title="World Wide Web Consortium">W3C</abbr> Process Document</a>.
|
||
</p></section><nav id="toc"><h2 class="introductory" id="table-of-contents">Table of Contents</h2><ol class="toc"><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#abstract">Abstract</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#sotd">Status of This Document</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#motivation"><bdi class="secno">1. </bdi>Motivation and background</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#namespaces"><bdi class="secno">2. </bdi>Notation and namespaces</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#overview"><bdi class="secno">3. </bdi>Principles and vocabulary overview</a><ol class="toc"><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#topology"><bdi class="secno">3.1 </bdi>Topological Temporal Relations</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#trs-clock-calendar"><bdi class="secno">3.2 </bdi>Temporal reference systems, clocks, calendars</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time-position"><bdi class="secno">3.3 </bdi>Time position</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#duration"><bdi class="secno">3.4 </bdi>Duration </a></li></ol></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#vocabulary"><bdi class="secno">4. </bdi>Vocabulary specification</a><ol class="toc"><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#classes"><bdi class="secno">4.1 </bdi>Classes</a><ol class="toc"><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription"><bdi class="secno">4.1.1 </bdi>Date-time description</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval"><bdi class="secno">4.1.2 </bdi>Date-time interval</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:DayOfWeek"><bdi class="secno">4.1.3 </bdi>Day of week</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:Duration"><bdi class="secno">4.1.4 </bdi>Duration</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:DurationDescription"><bdi class="secno">4.1.5 </bdi>Duration description</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription"><bdi class="secno">4.1.6 </bdi>Generalized date-time description</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription"><bdi class="secno">4.1.7 </bdi>Generalized duration description</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:Instant"><bdi class="secno">4.1.8 </bdi>Time instant</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:Interval"><bdi class="secno">4.1.9 </bdi>Time interval</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:MonthOfYear"><bdi class="secno">4.1.10 </bdi>Month of year</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:ProperInterval"><bdi class="secno">4.1.11 </bdi>Proper interval</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:TemporalDuration"><bdi class="secno">4.1.12 </bdi>Temporal duration</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:TemporalEntity"><bdi class="secno">4.1.13 </bdi>Temporal entity</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:TemporalPosition"><bdi class="secno">4.1.14 </bdi>Temporal position</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:TemporalUnit"><bdi class="secno">4.1.15 </bdi>Temporal unit</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:TimePosition"><bdi class="secno">4.1.16 </bdi>Time position</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:TimeZone"><bdi class="secno">4.1.17 </bdi>Time-zone</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:TRS"><bdi class="secno">4.1.18 </bdi>Temporal reference system</a></li></ol></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#properties"><bdi class="secno">4.2 </bdi>Properties</a><ol class="toc"><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:after"><bdi class="secno">4.2.1 </bdi>is after</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:before"><bdi class="secno">4.2.2 </bdi>is before</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:day"><bdi class="secno">4.2.3 </bdi>day</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:dayOfWeek"><bdi class="secno">4.2.4 </bdi>day of week</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:dayOfYear"><bdi class="secno">4.2.5 </bdi>day of year</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:days"><bdi class="secno">4.2.6 </bdi>days duration</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:hasBeginning"><bdi class="secno">4.2.7 </bdi>has beginning</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:hasDateTimeDescription"><bdi class="secno">4.2.8 </bdi>has date-time description</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:hasDuration"><bdi class="secno">4.2.9 </bdi>has duration</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:hasDurationDescription"><bdi class="secno">4.2.10 </bdi>has duration description</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:hasEnd"><bdi class="secno">4.2.11 </bdi>has end</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:hasTemporalDuration"><bdi class="secno">4.2.12 </bdi>has temporal duration</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:hasTime"><bdi class="secno">4.2.13 </bdi>has time</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:hasTRS"><bdi class="secno">4.2.14 </bdi>temporal reference system used</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:hasXSDDuration"><bdi class="secno">4.2.15 </bdi>has XSD duration</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:hour"><bdi class="secno">4.2.16 </bdi>hour</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:hours"><bdi class="secno">4.2.17 </bdi>hours duration</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:inDateTime"><bdi class="secno">4.2.18 </bdi>in date-time description</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:inside"><bdi class="secno">4.2.19 </bdi>has time instant inside</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:inTemporalPosition"><bdi class="secno">4.2.20 </bdi>temporal position</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalAfter"><bdi class="secno">4.2.21 </bdi>interval after</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalBefore"><bdi class="secno">4.2.22 </bdi>interval before</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalContains"><bdi class="secno">4.2.23 </bdi>interval contains</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalDisjoint"><bdi class="secno">4.2.24 </bdi>interval disjoint</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalDuring"><bdi class="secno">4.2.25 </bdi>interval during</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalEquals"><bdi class="secno">4.2.26 </bdi>interval equals</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalFinishedBy"><bdi class="secno">4.2.27 </bdi>interval finished by</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalFinishes"><bdi class="secno">4.2.28 </bdi>interval finishes</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalIn"><bdi class="secno">4.2.29 </bdi>interval in</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalMeets"><bdi class="secno">4.2.30 </bdi>interval meets</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalMetBy"><bdi class="secno">4.2.31 </bdi>interval met by</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalOverlappedBy"><bdi class="secno">4.2.32 </bdi>interval overlapped by</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalOverlaps"><bdi class="secno">4.2.33 </bdi>interval overlaps</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalStartedBy"><bdi class="secno">4.2.34 </bdi>interval started by</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:intervalStarts"><bdi class="secno">4.2.35 </bdi>interval starts</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:inTimePosition"><bdi class="secno">4.2.36 </bdi>time position</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:inXSDDate"><bdi class="secno">4.2.37 </bdi>in XSD date</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:inXSDDateTime"><bdi class="secno">4.2.38 </bdi>in XSD date-time</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:inXSDDateTimeStamp"><bdi class="secno">4.2.39 </bdi>in XSD date-time-stamp</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:inXSDgYear"><bdi class="secno">4.2.40 </bdi>in XSD gYear</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:inXSDgYearMonth"><bdi class="secno">4.2.41 </bdi>in XSD gYearMonth</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:minute"><bdi class="secno">4.2.42 </bdi>minute</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:minutes"><bdi class="secno">4.2.43 </bdi>minutes duration</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:month"><bdi class="secno">4.2.44 </bdi>month</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:monthOfYear"><bdi class="secno">4.2.45 </bdi>month of year</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:months"><bdi class="secno">4.2.46 </bdi>months duration</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:nominalPosition"><bdi class="secno">4.2.47 </bdi>name of temporal position</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:numericDuration"><bdi class="secno">4.2.48 </bdi>numeric value of temporal duration</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:numericPosition"><bdi class="secno">4.2.49 </bdi>numeric value of temporal position</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:second"><bdi class="secno">4.2.50 </bdi>second</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:seconds"><bdi class="secno">4.2.51 </bdi>seconds duration</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:timeZone"><bdi class="secno">4.2.52 </bdi>in time zone</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:unitType"><bdi class="secno">4.2.53 </bdi>temporal unit type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:week"><bdi class="secno">4.2.54 </bdi>week</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:weeks"><bdi class="secno">4.2.55 </bdi>weeks duration</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:xsdDateTime"><bdi class="secno">4.2.56 </bdi>has XSD date-time</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:year"><bdi class="secno">4.2.57 </bdi>year</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:years"><bdi class="secno">4.2.58 </bdi>years duration</a></li></ol></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#Datatypes"><bdi class="secno">4.3 </bdi>Datatypes</a><ol class="toc"><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:generalDay"><bdi class="secno">4.3.1 </bdi>generalDay</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:generalMonth"><bdi class="secno">4.3.2 </bdi>generalMonth</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time:generalYear"><bdi class="secno">4.3.3 </bdi>generalYear</a></li></ol></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#Individuals"><bdi class="secno">4.4 </bdi>Individuals</a></li></ol></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#examples"><bdi class="secno">5. </bdi>Examples</a><ol class="toc"><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#dtd-vs-dt"><bdi class="secno">5.1 </bdi>DateTimeDescription vs dateTime</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#different-TRS"><bdi class="secno">5.2 </bdi>Use of temporal reference systems</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#temporal-precision"><bdi class="secno">5.3 </bdi>Temporal precision</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#iCal"><bdi class="secno">5.4 </bdi>iCalendar</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#geologictimescale"><bdi class="secno">5.5 </bdi>Geologic timescale</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#scheduling"><bdi class="secno">5.6 </bdi>A Use Case for Scheduling</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#time-prov"><bdi class="secno">5.7 </bdi>Alignment of PROV-O with OWL-Time</a></li></ol></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#iana-links"><bdi class="secno">6. </bdi>IANA Considerations</a><ol class="toc"><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-after"><bdi class="secno">6.1 </bdi>intervalAfter Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-before"><bdi class="secno">6.2 </bdi>intervalBefore Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-contains"><bdi class="secno">6.3 </bdi>intervalContains Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-disjoint"><bdi class="secno">6.4 </bdi>intervalDisjoint Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-during"><bdi class="secno">6.5 </bdi>intervalDuring Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-equals"><bdi class="secno">6.6 </bdi>intervalEquals Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-finishedBy"><bdi class="secno">6.7 </bdi>intervalFinishedBy Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-finishes"><bdi class="secno">6.8 </bdi>intervalFinishes Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-in"><bdi class="secno">6.9 </bdi>intervalIn Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-meets"><bdi class="secno">6.10 </bdi>intervalMeets Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-metBy"><bdi class="secno">6.11 </bdi>intervalMetBy Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-overlappedBy"><bdi class="secno">6.12 </bdi>intervalOverlappedBy Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-overlaps"><bdi class="secno">6.13 </bdi>intervalOverlaps Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-startedBy"><bdi class="secno">6.14 </bdi>intervalStartedBy Link Relation Type</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#link-interval-starts"><bdi class="secno">6.15 </bdi>intervalStarts Link Relation Type</a></li></ol></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#security_and_privacy"><bdi class="secno">7. </bdi>Security and Privacy</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#summary"><bdi class="secno">A. </bdi>Summary of Classes and Properties in the Time Ontology</a><ol class="toc"><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#summary-classes"><bdi class="secno">A.1 </bdi>Classes (subclass relations)</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#summary-properties"><bdi class="secno">A.2 </bdi>Properties (sorted by domain value)</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#summary-datatypes"><bdi class="secno">A.3 </bdi>Datatypes</a></li></ol></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#implementation"><bdi class="secno">B. </bdi>Implementation report</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#changes"><bdi class="secno">C. </bdi>Changes from previous versions</a><ol class="toc"><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#x2021-update"><bdi class="secno">C.1 </bdi>2021 update</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#x2017-version"><bdi class="secno">C.2 </bdi>2017 version</a></li></ol></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#wide-review"><bdi class="secno">D. </bdi>Wide review</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#requirements"><bdi class="secno">E. </bdi>Response to Requirements identified in working group analysis</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#ack"><bdi class="secno">F. </bdi>Acknowledgements</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#references"><bdi class="secno">G. </bdi>References</a><ol class="toc"><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#normative-references"><bdi class="secno">G.1 </bdi>Normative references</a></li><li class="tocline"><a class="tocxref" href="https://www.w3.org/TR/owl-time/#informative-references"><bdi class="secno">G.2 </bdi>Informative references</a></li></ol></li></ol></nav>
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<section id="motivation" class="informative"><div class="header-wrapper"><h2 id="x1-motivation-and-background"><bdi class="secno">1. </bdi>Motivation and background</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#motivation" aria-label="Permalink for Section 1."></a></div><p><em>This section is non-normative.</em></p>
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||
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||
<p>Temporal information is important in most real world applications.
|
||
For example, the date is always part of an online order.
|
||
When you rent a car it is for specific dates.
|
||
Events in the world occur at specific times and usually have a finite duration.
|
||
Transactions occur in a sequence, with the current state of a system depending on the exact history of all the transactions.
|
||
Knowledge of the temporal relationships between transactions, events, travel and orders is often critical.
|
||
OWL-Time has been developed in response to this need,
|
||
for describing the temporal properties of any resource denoted using a web identifier (URI),
|
||
including web-pages and real-world things if desired.
|
||
OWL-Time focusses particularly on temporal ordering relationships.
|
||
While these are implicit in all temporal descriptions, OWL-Time provides specific predicates to support, or to make explicit the results of, reasoning over the order or sequence of temporal entities. </p>
|
||
<p>There is a great deal of relevant existing work, some very closely related.
|
||
ISO 8601 [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-iso8601" title="Representation of dates and times. ISO 8601:2004.">iso8601</a></cite>] provides a basis for encoding time position and extent in a character string, using the most common modern calendar-clock system.
|
||
Datatypes in XML Schema [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-xmlschema11-2" title="W3C XML Schema Definition Language (XSD) 1.1 Part 2: Datatypes">xmlschema11-2</a></cite>] use a subset of the ISO 8601 format in order to pack multi-element values into a compact literal.
|
||
Functions and operators on durations, and on dates and times, encoded in these ways are available in XPath and XQuery [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-xpath-functions-31" title="XPath and XQuery Functions and Operators 3.1">xpath-functions-31</a></cite>].
|
||
XSLT [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-xslt20" title="XSL Transformations (XSLT) Version 2.0 (Second Edition)">xslt20</a></cite>] also provides formatting functions for times and dates, with <a href="https://www.w3.org/TR/xslt20/#format-date">explicit support for the specified language, calendar and country</a>.
|
||
Some of the XML Schema datatypes are <a href="https://www.w3.org/TR/owl2-quick-reference/#Built-in_Datatypes">built-in to OWL2</a> [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-owl2-quick-reference" title="OWL 2 Web Ontology Language Quick Reference Guide (Second Edition)">owl2-quick-reference</a></cite>], so the XPath and XQuery functions may be used on basic OWL data. </p>
|
||
<p>OWL-Time makes use of these encodings, but also provides representations in which the elements of a date and time are put into separately addressable resources, which can help with queries and reasoning applications.
|
||
OWL-Time also supports other representations of temporal position and duration, including temporal coordinates (scaled position on a continuous temporal axis) and ordinal times (named positions or periods).
|
||
This includes relaxing the expectation from the original version that dates must use the Gregorian calendar.
|
||
However, OWL-Time has a particular focus on ordering relations ("temporal topology"), which is not supported explicitly in any of the date-time encodings. </p>
|
||
<p>A first-order logic axiomatization of the core of this ontology is available in [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-hp-04" title="An Ontology of Time for the Semantic Web. ACM Transactions on Asian Language Processing (TALIP): Special issue on Temporal Information Processing, 3, No. 1, March 2004, pp. 66-85. ">hp-04</a></cite>].
|
||
This document presents the OWL encodings of the ontology, with some additions. </p>
|
||
<p>This version of OWL-Time was developed in the Spatial Data on the Web Working Group (a joint activity involving <abbr title="World Wide Web Consortium">W3C</abbr> and the Open Geospatial Consortium).
|
||
The ontology is based on the draft by Hobbs and Pan [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-owl-time-20060927" title="Time Ontology in OWL">owl-time-20060927</a></cite>], incorporating modifications proposed by Cox [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-co-15" title="Time Ontology Extended for Non-Gregorian Calendar Applications. Semantic Web Journal 7, pp. 201-209">co-15</a></cite>] to support more general temporal positions, along with other minor improvements.
|
||
The substantial changes are listed in the <a href="https://www.w3.org/TR/owl-time/#changes">change-log</a>.
|
||
The specification document has been completely re-written. </p>
|
||
|
||
</section>
|
||
|
||
<section id="namespaces" class="normative"><div class="header-wrapper"><h2 id="x2-notation-and-namespaces"><bdi class="secno">2. </bdi>Notation and namespaces</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#namespaces" aria-label="Permalink for Section 2."></a></div>
|
||
|
||
<p>Classes and properties from the Time Ontology are denoted in this specification using <a href="https://www.w3.org/TR/curie/">Compact URIs</a> [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-curie" title="CURIE Syntax 1.0">curie</a></cite>]. </p>
|
||
<p>The namespace for OWL-Time is <a href="http://www.w3.org/2006/time#"><code>http://www.w3.org/2006/time#</code></a>. RDF representations of OWL-Time in various serializations are available at the namespace URI. OWL-Time does not re-use elements from any other vocabularies, but does use some built-in datatypes from OWL and some additional types from XML Schema Part 2.</p>
|
||
<p>The table below indicates the full list of namespaces and prefixes used in this document.</p>
|
||
<table id="namespacesTable">
|
||
<thead>
|
||
<tr>
|
||
<th>Prefix</th>
|
||
<th>Namespace</th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td><code>ex</code></td>
|
||
<td><code>http://example.org/time/</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code>geol</code></td>
|
||
<td><code>http://example.org/geologic/</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code>greg</code></td>
|
||
<td><code>http://www.w3.org/ns/time/gregorian#</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code>owl</code></td>
|
||
<td><code>http://www.w3.org/2002/07/owl#</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code>prov</code></td>
|
||
<td><code>http://www.w3.org/ns/prov#</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code>rdf</code></td>
|
||
<td><code>http://www.w3.org/1999/02/22-rdf-syntax-ns#</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code>rdfs</code></td>
|
||
<td><code>http://www.w3.org/2000/01/rdf-schema#</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code>time</code> or <br>
|
||
<em><code>no prefix</code></em></td>
|
||
<td><code>http://www.w3.org/2006/time#</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code>xsd</code></td>
|
||
<td><code>http://www.w3.org/2001/XMLSchema#</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<p>Where class descriptions include local restrictions on properties, these are described using the <a href="https://www.w3.org/TR/owl2-manchester-syntax/#Descriptions">OWL 2 Manchester Syntax</a> [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-owl2-manchester-syntax" title="OWL 2 Web Ontology Language Manchester Syntax (Second Edition)">owl2-manchester-syntax</a></cite>]. </p>
|
||
|
||
<p>Examples and other code fragments are serialized using <a href="https://www.w3.org/TR/turtle/">RDF 1.1 Turtle</a> notation [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-turtle" title="RDF 1.1 Turtle">turtle</a></cite>].</p>
|
||
|
||
</section>
|
||
|
||
<section id="overview" class="informative"><div class="header-wrapper"><h2 id="x3-principles-and-vocabulary-overview"><bdi class="secno">3. </bdi>Principles and vocabulary overview</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#overview" aria-label="Permalink for Section 3."></a></div><p><em>This section is non-normative.</em></p>
|
||
|
||
|
||
<section id="topology"><div class="header-wrapper"><h3 id="x3-1-topological-temporal-relations"><bdi class="secno">3.1 </bdi>Topological Temporal Relations</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#topology" aria-label="Permalink for Section 3.1"></a></div>
|
||
|
||
<p>The basic structure of the ontology is based on an algebra of binary relations on intervals
|
||
(e.g., meets, overlaps, during) developed by Allen [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-al-84" title="Towards a general theory of action and time. Artificial Intelligence 23, pp. 123-154.">al-84</a></cite>], [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-af-97" title="Actions and events in interval temporal logic In: Spatial and Temporal Reasoning. O. Stock, ed., Kluwer, Dordrecht, Netherlands, pp. 205-245.">af-97</a></cite>] for
|
||
representing qualitative temporal information, and to address the problem of reasoning about such information.
|
||
</p>
|
||
<p>The ontology starts with a class <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code> with properties <code><a href="https://www.w3.org/TR/owl-time/#time:hasBeginning">:hasBeginning</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:hasEnd">:hasEnd</a></code> that link to the temporal instants that define its limits, and <code><a href="https://www.w3.org/TR/owl-time/#time:hasTemporalDuration">:hasTemporalDuration</a></code> to describe its extent.
|
||
There are two subclasses: <code><a href="https://www.w3.org/TR/owl-time/#time:Interval">:Interval</a></code>
|
||
and <code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code>, and they are the only two subclasses of <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code>.
|
||
Intervals are things with extent.
|
||
Instants are point-like in that they have no interior points, but it is generally safe to think of an instant as an interval with zero length, where the beginning and end are the same. </p>
|
||
<p>This idea - that time intervals are the more general case and time instants are just a limited specialization - is the first key contribution of Allen's analysis. </p>
|
||
<p>The class <code><a href="https://www.w3.org/TR/owl-time/#time:Interval">:Interval</a></code> has one subclass <code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code>, which
|
||
corresponds with the common understanding of intervals, in that the beginning and end are distinct, and whose
|
||
membership is therefore disjoint from <code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code>. </p>
|
||
|
||
<figure id="fig-core-model-of-temporal-entities"> <img title="Temporal Entity and sub-classes" alt="UML-style diagram of temporal entity classes" src="./Time Ontology in OWL_files/TemporalEntity.png" width="600">
|
||
<figcaption>Figure <bdi class="figno">1</bdi> <span class="fig-title">Core model of temporal entities.</span></figcaption> </figure>
|
||
|
||
<p>The class <code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code> also has one subclass, <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">:DateTimeInterval</a></code>.
|
||
The position and extent of a <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">:DateTimeInterval</a></code> is an element in a
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code>. </p>
|
||
|
||
<p>Relations between intervals are the critical logic provided by Allen's analysis, and implemented in the ontology.
|
||
Relations between intervals can be defined in a relatively straightforward fashion in terms of <code><a href="https://www.w3.org/TR/owl-time/#time:before">:before</a></code> and identity on the beginning and end points.
|
||
The thirteen elementary relations shown below are the second key contribution of Allen's analysis.
|
||
These support unambiguous expression of all possible relations between temporal entities, which allows the computation of any relative position or sequence.
|
||
Note that the standard interval calculus assumes all intervals are proper, so their beginning and end are different. </p>
|
||
|
||
<figure id="fig-thirteen-elementary-possible-relations-between-time-periods-af-97"> <img style="width: 545px; height: 322px;" title="Allen's Interval Relations" alt="Schematic of Interval Relations" src="./Time Ontology in OWL_files/IntervalRelations.png" width="924" height="550">
|
||
<figcaption>Figure <bdi class="figno">2</bdi> <span class="fig-title">Thirteen elementary possible relations between time periods [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-af-97" title="Actions and events in interval temporal logic In: Spatial and Temporal Reasoning. O. Stock, ed., Kluwer, Dordrecht, Netherlands, pp. 205-245.">af-97</a></cite>]. </span></figcaption> </figure>
|
||
|
||
<p>Two additional relations: <code>In</code> (the union of <code>During</code>, <code>Starts</code> and <code>Finishes</code>) and <code>Disjoint</code> (the union of <code>Before</code> and <code>After</code>) are not shown in the figure but are included in the ontology. </p>
|
||
|
||
<p>The properties <code><a href="https://www.w3.org/TR/owl-time/#time:hasTemporalDuration">:hasTemporalDuration</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:hasBeginning">:hasBeginning</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:hasEnd">:hasEnd</a></code>, together with a fourth generic property <code><a href="https://www.w3.org/TR/owl-time/#time:hasTime">:hasTime</a></code>, support the association of temporal information with any temporal entity, such as an activity or event, or other entity.
|
||
These provide a standard way to attach time information to things, which may be used directly in applications if suitable, or specialized if needed. </p>
|
||
|
||
</section>
|
||
|
||
<section id="trs-clock-calendar"><div class="header-wrapper"><h3 id="x3-2-temporal-reference-systems-clocks-calendars"><bdi class="secno">3.2 </bdi>Temporal reference systems, clocks, calendars</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#trs-clock-calendar" aria-label="Permalink for Section 3.2"></a></div>
|
||
|
||
|
||
<p>The duration of a TemporalEntity may be given using the datatype <code><a href="https://www.w3.org/TR/xmlschema11-2/#duration">xsd:duration</a></code> and the position of an Instant may be given using the datatype <code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTimeStamp">xsd:dateTimeStamp</a></code>, which is built in to OWL 2 [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-owl2-syntax" title="OWL 2 Web Ontology Language Structural Specification and Functional-Style Syntax (Second Edition)">owl2-syntax</a></cite>].
|
||
These both use the conventional notions of temporal periods (years, months, weeks ... seconds), the Gregorian calendar, and the 24-hour clock.
|
||
The lexical representations use [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-iso8601" title="Representation of dates and times. ISO 8601:2004.">iso8601</a></cite>] style notation, but ignoring leap seconds, which are explicitly mandated by the international standard. </p>
|
||
|
||
<p>While this satisfies most web applications, many other calendars and temporal reference systems are used in particular cultural and scholarly contexts.
|
||
For example, the Julian calendar was used throughout Europe until the 16<sup>th</sup> century, and is still used for computing key dates in some orthodox Christian communities.
|
||
Lunisolar (e.g. Hebrew) and lunar (e.g. Islamic) calendars are currently in use in some communities, and many similar have been used historically.
|
||
Ancient Chinese calendars as well as the French revolutionary calendar used 10-day weeks.
|
||
In scientific and technical applications, Julian date counts the number of days since the beginning of 4713 BCE, and Loran-C, Unix and GPS time are based on seconds counted from a specified origin in 1958, 1970 and 1980, respectively, with GPS time represented using a pair of numbers for week number plus seconds into week.
|
||
Archaeological and geological applications use chronometric scales based on years counted backwards from ‘the present’ (defined as 1950 for radiocarbon dating [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-rc-14" title="The Remarkable Metrological History of Radiocarbon Dating [II]">rc-14</a></cite>]), or using named periods associated with specified correlation markers ([<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-cr-05" title="A formal model for the geologic time scale and global stratotype section and point, compatible with geospatial information transfer standards. Geosphere 1 119. ">cr-05</a></cite>], [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-cr-14" title="A geologic timescale ontology and service. Earth Sci. Informatics.. 8 5–19. ">cr-14</a></cite>], [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-mf-13" title="Recent progress on geologic time ontologies and considerations for future works, Earth Sci. Informatics. 6 31–46. ">mf-13</a></cite>]).
|
||
Dynastic calendars (counting years within eras defined by the reign of a monarch or dynasty) were used in many cultures. In order to support these more general applications, the representation of temporal position and duration must be flexible, and annotated with the <em>temporal reference system </em>in use. </p>
|
||
<p>A set of ordered intervals (e.g. named dynasties, geological periods, geomagnetic reversals, tree rings) can
|
||
make a simple form of temporal reference system that supports logical reasoning, known as an <em>ordinal
|
||
temporal reference system </em> [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-iso19108" title="ISO 19108:2002 Geographic information -- Temporal schema. ">iso19108</a></cite>]. </p>
|
||
<p>Measurement of duration needs a <em>clock</em>. In its most general form a clock is just a regularly
|
||
repeating physical event ('tick') and a counting mechanism for the 'ticks'. These counts may be used to
|
||
logically relate two events and to calculate a duration between the events.</p>
|
||
<p>A <em>calendar </em>is a set of algorithms that enables clock counts to be converted into practical
|
||
everyday dates and times related to the movement of astronomical bodies (day, month, year). </p>
|
||
<div class="note" role="note" id="issue-container-generatedID"><div role="heading" class="note-title marker" id="h-note" aria-level="4"><span>Note</span></div><p class="">As astronomically based calendars try to fit inconvenient durations into a usable regular system of counting cycles, 'intercalations' are often used to re-align the calendar's repeating patterns with astronomical events. These intercalations may be of different durations depending on the calendar, such as leap seconds, leap days, or even a group of days. Leap days are explicit and leap seconds implicit in the Gregorian calendar, which underlies the model used in several classes in OWL-Time. A general treatment of intercalations is beyond the scope of this ontology. </p></div>
|
||
<p>For many purposes it is convenient to make temporal calculations in terms of clock durations that exceed
|
||
everyday units such as days, weeks, months and years, using a representation of temporal position in a
|
||
<em>temporal coordinate system</em> [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-iso19108" title="ISO 19108:2002 Geographic information -- Temporal schema. ">iso19108</a></cite>], or <em>temporal coordinate reference system</em> [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-iso-19111-2019" title="Geographic information -- Referencing by coordinates">iso-19111-2019</a></cite>], [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-ogc-topic-2" title="OGC Abstract Specification Topic 2 - Geographic information - Referencing by coordinates">ogc-topic-2</a></cite>],
|
||
i.e. on a number line with a specified origin, such as Julian date, or Unix time.
|
||
This may be converted to calendar units when necessary for human consumption. </p>
|
||
<p>Nevertheless, in practice much temporal information is not well-defined, in that there may be no clear
|
||
statement about the assumed underlying calendar and clock. </p>
|
||
</section>
|
||
|
||
<section id="time-position"><div class="header-wrapper"><h3 id="x3-3-time-position"><bdi class="secno">3.3 </bdi>Time position</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#time-position" aria-label="Permalink for Section 3.3"></a></div>
|
||
|
||
<p>OWL 2 has two built-in datatypes relating to time: <code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTime">xsd:dateTime</a></code> and <code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTimeStamp">xsd:dateTimeStamp</a></code> [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-owl2-syntax" title="OWL 2 Web Ontology Language Structural Specification and Functional-Style Syntax (Second Edition)">owl2-syntax</a></cite>]. Other XSD types such as <code><a href="https://www.w3.org/TR/xmlschema11-2/#date">xsd:date</a></code>, <code><a href="https://www.w3.org/TR/xmlschema11-2/#gYear">xsd:gYear</a></code> and <code><a href="https://www.w3.org/TR/xmlschema11-2/#gYearMonth">xsd:gYearMonth</a></code> [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-xmlschema11-2" title="W3C XML Schema Definition Language (XSD) 1.1 Part 2: Datatypes">xmlschema11-2</a></cite>] are also commonly used in OWL applications.
|
||
These provide for a compact representation of time positions using the conventional Gregorian calendar and
|
||
24-hour clock, with timezone offset from UTC.</p>
|
||
<p>Four classes in the ontology support an explicit description of temporal position.
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:TemporalPosition">:TemporalPosition</a></code> is the common super-class, with a property <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">:hasTRS</a></code> to indicate the temporal reference system in use.
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">:TimePosition</a></code> has properties to alternatively describe the position using a number (i.e. a temporal coordinate), or a nominal value (e.g. geologic time period, dynastic name, archeological era).
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code> has a set of properties to specify a date-time using calendar and clock elements.
|
||
Its subclass <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code> fixes the temporal reference system to the Gregorian calendar. </p>
|
||
|
||
<figure id="fig-classes-for-temporal-position"> <img title="Temporal Position" alt="UML-style diagram of classes for temporal position" src="./Time Ontology in OWL_files/TemporalPosition.png" width="600">
|
||
<figcaption>Figure <bdi class="figno">3</bdi> <span class="fig-title">Classes for temporal position.</span></figcaption> </figure>
|
||
|
||
<p>Following Allen's first key idea described above, even a time position has a finite extent, corresponding to the precision or <em>temporal unit </em>used. Thus, a <code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code>
|
||
or <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code> has a duration corresponding to the value of its <code><a href="https://www.w3.org/TR/owl-time/#time:unitType">:unitType</a></code>.</p>
|
||
|
||
</section>
|
||
|
||
<section id="duration"><div class="header-wrapper"><h3 id="x3-4-duration"><bdi class="secno">3.4 </bdi>Duration </h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#duration" aria-label="Permalink for Section 3.4"></a></div>
|
||
|
||
<p>The duration of an interval (or temporal sequence) can have many different descriptions. An interval can be 1
|
||
day 2 hours, or 26 hours, or 1560 minutes, and so on. It is useful to be able to talk about these descriptions
|
||
in a convenient way as independent objects, and to talk about their equivalences. The extent of an interval can be
|
||
given using multiple duration descriptions or individual durations (e.g., 2 days, 48 hours) , but these must all describe the same amount of time. </p>
|
||
<p>Four classes support the description of the duration of an entity.
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:TemporalDuration">:TemporalDuration</a></code> is the common super-class.
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:Duration">:Duration</a></code> has properties to describe the duration using a scaled number (i.e. a temporal quantity).
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code> has a set of properties to specify a duration using calendar and clock elements, the definitions of which are given in the associated TRS description.
|
||
Its subclass <code><a href="https://www.w3.org/TR/owl-time/#time:DurationDescription">:DurationDescription</a></code> fixes the temporal reference system to the Gregorian calendar, so the <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">:hasTRS</a></code> property may be omitted on individuals from this class. </p>
|
||
<p><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalUnit">:TemporalUnit</a></code> is a standard duration which is used to scale a length of time, and to capture its granularity or precision. </p>
|
||
|
||
<figure id="fig-classes-for-temporal-duration"> <img title="Temporal Duration" alt="UML representation of Temporal Duration and sub-classes" src="./Time Ontology in OWL_files/TemporalDuration.png" width="600">
|
||
<figcaption>Figure <bdi class="figno">4</bdi> <span class="fig-title">Classes for temporal duration.</span></figcaption> </figure>
|
||
|
||
<p>We use two different sets of properties for <code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code> or <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code>,
|
||
and <code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code> or <code><a href="https://www.w3.org/TR/owl-time/#time:DurationDescription">:DurationDescription</a></code>, because their ranges are
|
||
different. For example, <code><a href="https://www.w3.org/TR/owl-time/#time:year">:year</a></code> (in <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code>) has a range of <code><a href="https://www.w3.org/TR/xmlschema11-2/#gYear">xsd:gYear</a></code> which is a position in the Gregorian calendar,
|
||
while <code><a href="https://www.w3.org/TR/owl-time/#time:years">:years</a></code> (in <code><a href="https://www.w3.org/TR/owl-time/#time:DurationDescription">:DurationDescription</a></code>) has a range of <code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code>
|
||
so that you can say "duration of 2.5 years".</p>
|
||
|
||
</section>
|
||
|
||
</section>
|
||
|
||
<section id="vocabulary" class="normative"><div class="header-wrapper"><h2 id="x4-vocabulary-specification"><bdi class="secno">4. </bdi>Vocabulary specification</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#vocabulary" aria-label="Permalink for Section 4."></a></div>
|
||
|
||
|
||
<p>In this vocabulary specification, Manchester syntax [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-owl2-manchester-syntax" title="OWL 2 Web Ontology Language Manchester Syntax (Second Edition)">owl2-manchester-syntax</a></cite>] is used where the value of a field is not a simple term denoted by a URI or cURI.</p>
|
||
<p>RDF representations of OWL-Time are available at the vocabulary namespace URI - see <a href="https://www.w3.org/TR/owl-time/#namespaces">Notation and namespaces</a>.</p>
|
||
|
||
<section id="classes"><div class="header-wrapper"><h3 id="x4-1-classes"><bdi class="secno">4.1 </bdi>Classes</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#classes" aria-label="Permalink for Section 4.1"></a></div>
|
||
|
||
|
||
<p>
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">:DateTimeInterval</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:DayOfWeek">:DayOfWeek</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:Duration">:Duration</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:DurationDescription">:DurationDescription</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:Interval">:Interval</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:MonthOfYear">:MonthOfYear</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:TemporalDuration">:TemporalDuration</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:TemporalPosition">:TemporalPosition</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:TemporalUnit">:TemporalUnit</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">:TimePosition</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:TimeZone">:TimeZone</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:TRS">:TRS</a></code>
|
||
</p>
|
||
|
||
<section id="date-time-description"><div class="header-wrapper"><h4 id="time:DateTimeDescription"><bdi class="secno">4.1.1 </bdi>Date-time description</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription" aria-label="Permalink for Section 4.1.1"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">time:DateTimeDescription</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Description of date and time structured with separate values for the various elements of a
|
||
calendar-clock system. The temporal reference system is fixed to Gregorian Calendar, and the range of
|
||
year, month, day properties restricted to corresponding XML Schema types xsd:gYear, xsd:gMonth and
|
||
xsd:gDay, respectively. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">time:hasTRS</a> value <a href="http://www.opengis.net/def/uom/ISO-8601/0/Gregorian"><http://www.opengis.net/def/uom/ISO-8601/0/Gregorian></a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:year">time:year</a> only xsd:gYear</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:month">time:month</a> only xsd:gMonth</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:day">time:day</a> only xsd:gDay</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Other datetime concepts can be defined by specialization of <code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code> or <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code> - see <a href="https://www.w3.org/TR/owl-time/#temporal-precision">examples below</a>.</p>
|
||
</section>
|
||
|
||
<section id="date-time-interval"><div class="header-wrapper"><h4 id="time:DateTimeInterval"><bdi class="secno">4.1.2 </bdi>Date-time interval</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval" aria-label="Permalink for Section 4.1.2"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">time:DateTimeInterval</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">time:DateTimeInterval</a></code> is a subclass of <code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code>, defined using the
|
||
multi-element <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">time:DateTimeDescription</a></code>.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>The class <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">:DateTimeInterval</a></code> is a subclass of <code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code>. It enables compact representation of an interval corresponding to a single element in a date-time description (i.e. a specified year, month, week, day, hour, minute, second).
|
||
The property <code><a href="https://www.w3.org/TR/owl-time/#time:hasDateTimeDescription">:hasDateTimeDescription</a></code> describes the interval.</p>
|
||
|
||
<div class="note" role="note" id="issue-container-generatedID-0"><div role="heading" class="note-title marker" id="h-note-0" aria-level="5"><span>Note</span></div><p class=""><code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">:DateTimeInterval</a></code> can only be used for an interval whose limits coincide with a date-time element aligned to the calendar and timezone indicated.
|
||
For example, while both have a duration of one day, the 24-hour interval beginning at midnight at the beginning of 8 May in Central Europe can be expressed as a <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">:DateTimeInterval</a></code>, but the 24-hour interval starting at 1:30pm cannot. </p></div>
|
||
</section>
|
||
|
||
<section id="day-of-week"><div class="header-wrapper"><h4 id="time:DayOfWeek"><bdi class="secno">4.1.3 </bdi>Day of week</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:DayOfWeek" aria-label="Permalink for Section 4.1.3"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:DayOfWeek">time:DayOfWeek</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>The day of week</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:Class</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Seven individual members of <code><a href="https://www.w3.org/TR/owl-time/#time:DayOfWeek">:DayOfWeek</a></code> are included in the ontology, corresponding to the seven
|
||
days used in the Gregorian calendar, and using the English names <code><a href="https://www.w3.org/TR/owl-time/#time:Sunday">:Sunday</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:Monday">:Monday</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:Tuesday">:Tuesday</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:Wednesday">:Wednesday</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:Thursday">:Thursday</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:Friday">:Friday</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:Saturday">:Saturday</a></code>.</p>
|
||
<div class="note" role="note" id="issue-container-generatedID-1"><div role="heading" class="note-title marker" id="h-note-1" aria-level="5"><span>Note</span></div><p class="">Membership of the class <code><a href="https://www.w3.org/TR/owl-time/#time:DayOfWeek">:DayOfWeek</a></code> is open, to allow for alternative week lengths and different day names. </p></div>
|
||
</section>
|
||
|
||
<section id="duration-0"><div class="header-wrapper"><h4 id="time:Duration"><bdi class="secno">4.1.4 </bdi>Duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:Duration" aria-label="Permalink for Section 4.1.4"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:Duration">time:Duration</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Duration of a temporal extent expressed as a decimal number scaled by a temporal unit</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalDuration">:TemporalDuration</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:numericDuration">time:numericDuration</a> exactly 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:unitType">time:unitType</a> exactly 1</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="duration-description"><div class="header-wrapper"><h4 id="time:DurationDescription"><bdi class="secno">4.1.5 </bdi>Duration description</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:DurationDescription" aria-label="Permalink for Section 4.1.5"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:DurationDescription">time:DurationDescription</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Description of temporal extent structured with separate values for the various elements of a
|
||
calendar-clock system. The temporal reference system is fixed to Gregorian Calendar, and the range of
|
||
each of the numeric properties is restricted to <a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">time:GeneralDurationDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">time:hasTRS</a> value <a href="http://www.opengis.net/def/uom/ISO-8601/0/Gregorian"><http://www.opengis.net/def/uom/ISO-8601/0/Gregorian></a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:years">time:years</a> only xsd:decimal</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:months">time:months</a> only xsd:decimal</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:weeks">time:weeks</a> only xsd:decimal</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:days">time:days</a> only xsd:decimal</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hours">time:hours</a> only xsd:decimal</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:minutes">time:minutes</a> only xsd:decimal</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:seconds">time:seconds</a> only xsd:decimal</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<div class="note" role="note" id="issue-container-generatedID-2"><div role="heading" class="note-title marker" id="h-note-2" aria-level="5"><span>Note</span></div><p class="">In the Gregorian calendar the length of the month is not fixed. Therefore, a value like "2.5 months" cannot be exactly compared with a similar duration expressed in terms of weeks or days.</p></div>
|
||
</section>
|
||
|
||
<section id="generalized-date-time-description"><div class="header-wrapper"><h4 id="time:GeneralDateTimeDescription"><bdi class="secno">4.1.6 </bdi>Generalized date-time description</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription" aria-label="Permalink for Section 4.1.6"></a></div>
|
||
|
||
<table class="definition" style="border-collapse: collapse; width: 812px; ">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Description of date and time structured with separate values for the various elements of a
|
||
calendar-clock system</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalPosition">:TemporalPosition</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:timeZone">time:timeZone</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:unitType">time:unitType</a> exactly 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:year">time:year</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:month">time:month</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:day">time:day</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hour">time:hour</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:minute">time:minute</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:second">time:second</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:week">time:week</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:dayOfYear">time:dayOfYear</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:dayOfWeek">time:dayOfWeek</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:monthOfYear">time:monthOfYear</a> max 1</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Two properties <code><a href="https://www.w3.org/TR/owl-time/#time:timeZone">:timeZone</a></code>, and <code><a href="https://www.w3.org/TR/owl-time/#time:unitType">:unitType</a></code>, along with <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">:hasTRS</a></code> provide for reference information concerning the reference system and precision of temporal position values. </p>
|
||
<p>Six datatype properties <code><a href="https://www.w3.org/TR/owl-time/#time:year">:year</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:month">:month</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:day">:day</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:hour">:hour</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:minute">:minute</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:second">:second</a></code>, together with <code><a href="https://www.w3.org/TR/owl-time/#time:timeZone">:timeZone</a></code> support the description of
|
||
components of a temporal position in a calendar-clock system. These correspond with the 'seven property
|
||
model' described in ISO 8601 [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-iso8601" title="Representation of dates and times. ISO 8601:2004.">iso8601</a></cite>] and XML Schema Definition Language Part 2:
|
||
Datatypes [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-xmlschema11-2" title="W3C XML Schema Definition Language (XSD) 1.1 Part 2: Datatypes">xmlschema11-2</a></cite>], except that the calendar is not specified in advance, but is provided
|
||
through the value of the <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">:hasTRS</a></code> property (defined above). </p>
|
||
<p>Some combinations of properties are redundant. For example, within a specified :year if <code><a href="https://www.w3.org/TR/owl-time/#time:dayOfYear">:dayOfYear</a></code> is provided then <code><a href="https://www.w3.org/TR/owl-time/#time:day">:day</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:month">:month</a></code> can be computed, and vice versa.
|
||
Individual values <em class="rfc2119">SHOULD</em> be consistent with each other and the calendar, indicated through the value of the <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">:hasTRS</a></code> property.</p>
|
||
<p>Two additional properties <code><a href="https://www.w3.org/TR/owl-time/#time:week">:week</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:dayOfYear">:dayOfYear</a></code> allow for the numeric value of the week or day relative to the year.
|
||
The property <code><a href="https://www.w3.org/TR/owl-time/#time:dayOfWeek">:dayOfWeek</a></code> provides the name of the day, and the property <code><a href="https://www.w3.org/TR/owl-time/#time:monthOfYear">:monthOfYear</a></code> provides the name of the month. </p>
|
||
</section>
|
||
|
||
<section id="generalized-duration-description"><div class="header-wrapper"><h4 id="time:GeneralDurationDescription"><bdi class="secno">4.1.7 </bdi>Generalized duration description</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription" aria-label="Permalink for Section 4.1.7"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">time:GeneralDurationDescription</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Description of temporal extent structured with separate values for the various elements of a
|
||
calendar-clock system. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalDuration">:TemporalDuration</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">time:hasTRS</a> exactly 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:years">time:years</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:months">time:months</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:weeks">time:weeks</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:days">time:days</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hours">time:hours</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:minutes">time:minutes</a> max 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:seconds">time:seconds</a> max 1</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Seven datatype properties <code><a href="https://www.w3.org/TR/owl-time/#time:years">:years</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:months">:months</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:weeks">:weeks</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:days">:days</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:hours">:hours</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:minutes">:minutes</a></code>, and <code><a href="https://www.w3.org/TR/owl-time/#time:seconds">:seconds</a></code> support the description of components of a temporal extent in a calendar-clock system. </p>
|
||
<p>The property <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">time:hasTRS</a></code> indicates the temporal reference system applicable for the duration components. </p>
|
||
<div class="note" role="note" id="issue-container-generatedID-3"><div role="heading" class="note-title marker" id="h-note-3" aria-level="5"><span>Note</span></div><p class="">The extent of a time duration expressed as a GeneralDurationDescription depends on the Temporal Reference System. In some calendars the length of the week or month is not constant within the year. Therefore, a value like "2.5 months" may not necessarily be exactly compared with a similar duration expressed in terms of weeks or days. When non-earth-based calendars are considered even more care must be taken in comparing durations.</p></div>
|
||
</section>
|
||
|
||
<section id="time-instant"><div class="header-wrapper"><h4 id="time:Instant"><bdi class="secno">4.1.8 </bdi>Time instant</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:Instant" aria-label="Permalink for Section 4.1.8"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>A temporal entity with zero extent or duration</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:TemporalEntity</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Seven properties, <code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDate">:inXSDDate</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTime">:inXSDDateTime</a></code> (deprecated), <code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTimeStamp">:inXSDDateTimeStamp</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:inXSDgYear">:inXSDgYear</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:inXSDgYearMonth">:inXSDgYearMonth</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:inTimePosition">:inTimePosition</a></code>, and <code><a href="https://www.w3.org/TR/owl-time/#time:inDateTime">:inDateTime</a></code>
|
||
provide alternative ways to describe the temporal position of an <code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code>. </p>
|
||
</section>
|
||
|
||
<section id="time-interval"><div class="header-wrapper"><h4 id="time:Interval"><bdi class="secno">4.1.9 </bdi>Time interval</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:Interval" aria-label="Permalink for Section 4.1.9"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:Interval">time:Interval</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>A temporal entity with an extent or duration</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:TemporalEntity</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>One property <code><a href="https://www.w3.org/TR/owl-time/#time:inside">:inside</a></code> links to an <code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code> that falls inside the <code><a href="https://www.w3.org/TR/owl-time/#time:Interval">:Interval</a></code>.</p>
|
||
</section>
|
||
|
||
<section id="month-of-year"><div class="header-wrapper"><h4 id="time:MonthOfYear"><bdi class="secno">4.1.10 </bdi>Month of year</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:MonthOfYear" aria-label="Permalink for Section 4.1.10"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:MonthOfYear">time:MonthOfYear</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>The month of the year</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:DateTimeDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:year">time:year</a> exactly 0</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:month">time:month</a> exactly 1</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:week">time:week</a> exactly 0</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:day">time:day</a> exactly 0</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hour">time:hour</a> exactly 0</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:minute">time:minute</a> exactly 0</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:second">time:second</a> exactly 0</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:unitType">time:unitType</a> value <a href="https://www.w3.org/TR/owl-time/#time:unitMonth">time:unitMonth</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Twelve individual members of <code><a href="https://www.w3.org/TR/owl-time/#time:MonthOfYear">:MonthOfYear</a></code> are provided in a <a href="http://www.w3.org/ns/time/gregorian">separate namespace</a>, corresponding to the twelve months used in the Gregorian calendar
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:January">greg:January</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:February">greg:February</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:March">greg:March</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:April">greg:April</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:May">greg:May</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:June">greg:June</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:July">greg:July</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:August">greg:August</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:September">greg:September</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:October">greg:October</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:November">greg:November</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:December">greg:December</a></code>.
|
||
Each month is defined by setting the value of <code><a href="https://www.w3.org/TR/owl-time/#time:month">time:month</a></code> to the corresponding value.</p>
|
||
<div class="note" role="note" id="issue-container-generatedID-4"><div role="heading" class="note-title marker" id="h-note-4" aria-level="5"><span>Note</span></div><p class="">Membership of the class <code><a href="https://www.w3.org/TR/owl-time/#time:MonthOfYear">:MonthOfYear</a></code> is open, to allow for alternative annual calendars and different month names. </p></div>
|
||
</section>
|
||
|
||
<section id="proper-interval"><div class="header-wrapper"><h4 id="time:ProperInterval"><bdi class="secno">4.1.11 </bdi>Proper interval</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:ProperInterval" aria-label="Permalink for Section 4.1.11"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>A temporal entity with non-zero extent or duration, i.e. for which the value of the beginning and end
|
||
are different</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Interval">time:Interval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Disjoint with: </td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Fifteen properties
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalBefore">:intervalBefore</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:intervalAfter">:intervalAfter</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalMeets">:intervalMeets</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:intervalMetBy">:intervalMetBy</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalOverlaps">:intervalOverlaps</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:intervalOverlappedBy">:intervalOverlappedBy</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalStarts">:intervalStarts</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:intervalStartedBy">:intervalStartedBy</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalDuring">:intervalDuring</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:intervalContains">:intervalContains</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishes">:intervalFinishes</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishedBy">:intervalFinishedBy</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalEquals">:intervalEquals</a></code>
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalDisjoint">:intervalDisjoint</a></code>
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalIn">:intervalIn</a></code>
|
||
support the set of interval relations defined by Allen [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-al-84" title="Towards a general theory of action and time. Artificial Intelligence 23, pp. 123-154.">al-84</a></cite>] and Allen and Ferguson [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-af-97" title="Actions and events in interval temporal logic In: Spatial and Temporal Reasoning. O. Stock, ed., Kluwer, Dordrecht, Netherlands, pp. 205-245.">af-97</a></cite>].</p>
|
||
</section>
|
||
|
||
<section id="temporal-duration"><div class="header-wrapper"><h4 id="time:TemporalDuration"><bdi class="secno">4.1.12 </bdi>Temporal duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:TemporalDuration" aria-label="Permalink for Section 4.1.12"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<thead>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalDuration">time:TemporalDuration</a></code></th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Time extent; duration of a time interval separate from its particular start position </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:Class</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="temporal-entity"><div class="header-wrapper"><h4 id="time:TemporalEntity"><bdi class="secno">4.1.13 </bdi>Temporal entity</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:TemporalEntity" aria-label="Permalink for Section 4.1.13"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<thead>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:TemporalEntity</a></code></th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>A temporal interval or instant. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:Class</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Union of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a> , <a href="https://www.w3.org/TR/owl-time/#time:Interval">time:Interval</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Two properties, <code><a href="https://www.w3.org/TR/owl-time/#time:before">:before</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:after">:after</a></code>, support ordering relationships between two <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code>s.</p>
|
||
<p>The properties <code><a href="https://www.w3.org/TR/owl-time/#time:hasBeginning">:hasBeginning</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:hasEnd">:hasEnd</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:hasTemporalDuration">:hasTemporalDuration</a></code> (or its sub-properties), support the description of the bounds and extent of a <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code>.</p>
|
||
</section>
|
||
|
||
<section id="temporal-position"><div class="header-wrapper"><h4 id="time:TemporalPosition"><bdi class="secno">4.1.14 </bdi>Temporal position</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:TemporalPosition" aria-label="Permalink for Section 4.1.14"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<thead>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalPosition">time:TemporalPosition</a></code></th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>A position on a time-line </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:Class</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">time:hasTRS</a> exactly 1</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>The property <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">time:hasTRS</a></code> indicates the temporal reference system. </p>
|
||
</section>
|
||
|
||
<section id="temporal-unit"><div class="header-wrapper"><h4 id="time:TemporalUnit"><bdi class="secno">4.1.15 </bdi>Temporal unit</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:TemporalUnit" aria-label="Permalink for Section 4.1.15"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalUnit">time:TemporalUnit</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>A standard duration, which provides the scale factor for a time extent, or the granularity or precision for a time position. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalDuration">time:TemporalDuration</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Ten individual members of <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalUnit">:TemporalUnit</a></code> are included in the ontology, corresponding to the
|
||
elements of the standard calendar-clock: <code><a href="https://www.w3.org/TR/owl-time/#time:unitYear">:unitYear</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:unitMonth">:unitMonth</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:unitWeek">:unitWeek</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:unitDay">:unitDay</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:unitHour">:unitHour</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:unitMinute">:unitMinute</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:unitSecond">:unitSecond</a></code>, as well as <code><a href="https://www.w3.org/TR/owl-time/#time:unitDecade">:unitDecade</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:unitCentury">:unitCentury</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:unitMillenium">:unitMillenium</a></code> to support historical and archeological applications. </p>
|
||
<div class="note" role="note" id="issue-container-generatedID-5"><div role="heading" class="note-title marker" id="h-note-5" aria-level="5"><span>Note</span></div><p class="">Membership of the class TemporalUnit is open, to allow for
|
||
other temporal units used in some technical applications (e.g. millions of years, Baha'i month). </p></div>
|
||
</section>
|
||
|
||
<section id="time-position-0"><div class="header-wrapper"><h4 id="time:TimePosition"><bdi class="secno">4.1.16 </bdi>Time position</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:TimePosition" aria-label="Permalink for Section 4.1.16"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">time:TimePosition</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>A temporal position described using either a (nominal) value from an ordinal reference system, or a
|
||
(numeric) value in a temporal coordinate system. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalPosition">:TemporalPosition</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><code>( <a href="https://www.w3.org/TR/owl-time/#time:numericPosition">time:numericPosition</a> exactly 1 ) or ( <a href="https://www.w3.org/TR/owl-time/#time:nominalPosition">time:nominalPosition</a> exactly 1 )</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>Two properties <code><a href="https://www.w3.org/TR/owl-time/#time:nominalPosition">:nominalPosition</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:numericPosition">:numericPosition</a></code> support the alternative
|
||
descriptions of position or extent. One of these is expected to be present. </p>
|
||
<p>The temporal ordinal reference system should be provided as the value of the <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">:hasTRS</a></code> property</p>
|
||
<p>The temporal coordinate system should be provided as the value of the <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">:hasTRS</a></code> property</p>
|
||
</section>
|
||
|
||
<section id="time-zone"><div class="header-wrapper"><h4 id="time:TimeZone"><bdi class="secno">4.1.17 </bdi>Time-zone</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:TimeZone" aria-label="Permalink for Section 4.1.17"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:TimeZone">time:TimeZone</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>A Time Zone specifies the amount by which the local time is offset from UTC.
|
||
A time zone is usually denoted geographically (e.g. Australian Eastern Daylight Time), with a constant value in a given region.
|
||
The region where it applies and the offset from UTC are specified by a locally recognised governing authority. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:Class</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>No specific properties are provided for the class <code><a href="https://www.w3.org/TR/owl-time/#time:TimeZone">:TimeZone</a></code>, the definition of which is beyond the
|
||
scope of this ontology. The class specified here is a stub, effectively the superclass of all time zone classes. </p>
|
||
<div class="note" role="note" id="issue-container-generatedID-6"><div role="heading" class="note-title marker" id="h-note-6" aria-level="5"><span>Note</span></div><div class="">
|
||
<p>An ontology for time zone descriptions was described in [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-owl-time-20060927" title="Time Ontology in OWL">owl-time-20060927</a></cite>] and provided as RDF in a separate namespace <code>tzont:</code>.
|
||
However, that ontology was incomplete in scope, and the example datasets were selective. Furthermore, since the use of a class from an external ontology as the range of an <code>ObjectProperty</code> in OWL-Time creates a dependency, reference to the time zone class has been replaced with the 'stub' class in the normative part of this version of OWL-Time.</p>
|
||
</div></div>
|
||
<div class="note" role="note" id="issue-container-generatedID-7"><div role="heading" class="note-title marker" id="h-note-7" aria-level="5"><span>Note</span></div><div class="">
|
||
<p>A designated timezone is associated with a geographic region. However, for a particular region the offset from UTC often varies seasonally, and the dates of the changes may vary from year to year. The timezone designation usually changes for the different seasons (e.g. Australian Eastern Standard Time vs. Australian Eastern Daylight Time). Furthermore, the offset for a timezone may change over longer timescales, though its designation might not. </p>
|
||
<p>Detailed guidance about working with time zones is given in [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-timezone" title="Working with Time Zones">timezone</a></cite>].</p>
|
||
</div></div>
|
||
</section>
|
||
|
||
<section id="temporal-reference-system"><div class="header-wrapper"><h4 id="time:TRS"><bdi class="secno">4.1.18 </bdi>Temporal reference system</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:TRS" aria-label="Permalink for Section 4.1.18"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:TRS">time:TRS</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>A temporal reference system, such as a temporal coordinate reference system (with an origin, direction, and
|
||
scale), a calendar-clock combination, or a (possibly hierarchical) ordinal system. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:Class</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<p>No specific properties are provided for the class <code><a href="https://www.w3.org/TR/owl-time/#time:TRS">:TRS</a></code>, the definition of which is beyond the
|
||
scope of this ontology. The class specified here is a stub, effectively the superclass of all temporal reference system types. </p>
|
||
<p>Note that an ordinal temporal reference system, such as the geologic timescale,
|
||
may be represented directly, using this ontology, as a set of <code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code>s, along with enough
|
||
inter-relationships to support the necessary ordering relationships. See example below of <a href="https://www.w3.org/TR/owl-time/#geologictimescale">Geologic
|
||
Timescale</a>. </p>
|
||
<div class="note" role="note" id="issue-container-generatedID-8"><div role="heading" class="note-title marker" id="h-note-8" aria-level="5"><span>Note</span></div><div class="">
|
||
<p>A taxonomy of temporal reference systems is provided in ISO 19108:2002 [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-iso19108" title="ISO 19108:2002 Geographic information -- Temporal schema. ">iso19108</a></cite>],
|
||
including (a) calendar + clock systems; (b) temporal coordinate systems (i.e. numeric offset from an epoch);
|
||
(c) temporal ordinal reference systems (i.e. ordered sequence of named intervals, not necessarily of equal duration). </p>
|
||
<p>
|
||
ISO 19111:2019 [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-iso-19111-2019" title="Geographic information -- Referencing by coordinates">iso-19111-2019</a></cite>] (also published as OGC Abstract Specification Topic 2 [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-ogc-topic-2" title="OGC Abstract Specification Topic 2 - Geographic information - Referencing by coordinates">ogc-topic-2</a></cite>]) provides a data model structure for temporal coordinate reference systems, conceptually equivalent to the temporal coordinate system of ISO 19108, in which the offset may be expressed as a dateTime, an integer or a real number. Annex D in that document provides examples of definitive and ambiguous calendar arithmetic.
|
||
</p>
|
||
</div></div>
|
||
</section>
|
||
|
||
</section>
|
||
|
||
<section id="properties"><div class="header-wrapper"><h3 id="x4-2-properties"><bdi class="secno">4.2 </bdi>Properties</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#properties" aria-label="Permalink for Section 4.2"></a></div>
|
||
|
||
|
||
<p>
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:after">:after</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:before">:before</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:day">:day</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:dayOfWeek">:dayOfWeek</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:dayOfYear">:dayOfYear</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:days">:days</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:hasBeginning">:hasBeginning</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:hasDateTimeDescription">:hasDateTimeDescription</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:hasDuration">:hasDuration</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:hasDurationDescription">:hasDurationDescription</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:hasEnd">:hasEnd</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:hasTemporalDuration">:hasTemporalDuration</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:hasTime">:hasTime</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">:hasTRS</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:hasXSDDuration">:hasXSDDuration</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:hour">:hour</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:hours">:hours</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:inDateTime">:inDateTime</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:inside">:inside</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:inTemporalPosition">:inTemporalPosition</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalAfter">:intervalAfter</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalBefore">:intervalBefore</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalContains">:intervalContains</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalDisjoint">:intervalDisjoint</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalDuring">:intervalDuring</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalEquals">:intervalEquals</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishedBy">:intervalFinishedBy</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishes">:intervalFinishes</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalIn">:intervalIn</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalMeets">:intervalMeets</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalMetBy">:intervalMetBy</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalOverlappedBy">:intervalOverlappedBy</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalOverlaps">:intervalOverlaps</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalStartedBy">:intervalStartedBy</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalStarts">:intervalStarts</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:inTimePosition">:inTimePosition</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDate">:inXSDDate</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTime">:inXSDDateTime</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTimeStamp">:inXSDDateTimeStamp</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:inXSDgYear">:inXSDgYear</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:inXSDgYearMonth">:inXSDgYearMonth</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:minute">:minute</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:minutes">:minutes</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:month">:month</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:monthOfYear">:monthOfYear</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:months">:months</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:nominalPosition">:nominalPosition</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:numericDuration">:numericDuration</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:numericPosition">:numericPosition</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:second">:second</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:seconds">:seconds</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:timeZone">:timeZone</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:unitType">:unitType</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:week">:week</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:weeks">:weeks</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:xsdDateTime">:xsdDateTime</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:year">:year</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:years">:years</a></code>
|
||
</p>
|
||
|
||
<section id="is-after"><div class="header-wrapper"><h4 id="time:after"><bdi class="secno">4.2.1 </bdi>is after</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:after" aria-label="Permalink for Section 4.2.1"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<thead>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:after">time:after</a></code></th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>The subject is a temporal entity that occurs after the object. If a temporal entity T<sub>1</sub> is <em>after</em> another temporal
|
||
entity T<sub>2</sub>, then the beginning of T<sub>1</sub> is after the end of T<sub>2</sub>.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:TemporalEntity</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:TemporalEntity</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse Property:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:before">time:before</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="is-before"><div class="header-wrapper"><h4 id="time:before"><bdi class="secno">4.2.2 </bdi>is before</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:before" aria-label="Permalink for Section 4.2.2"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<thead>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:before">time:before</a></code></th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>The subject is a temporal entity that occurs before the object. If a temporal entity T<sub>1</sub> is <em>before</em> another
|
||
temporal entity T<sub>2</sub>, then the end of T<sub>1</sub> is before the beginning of T<sub>2</sub>.
|
||
Thus, <em>before</em> can be considered to be basic to instants and derived for intervals. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:TemporalEntity</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:TemporalEntity</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse Property:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:after">time:after</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="day"><div class="header-wrapper"><h4 id="time:day"><bdi class="secno">4.2.3 </bdi>day</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:day" aria-label="Permalink for Section 4.2.3"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:day">time:day</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Day position in a calendar-clock system.
|
||
|
||
The range of this property is not specified, so can be replaced by any specific representation of a calendar day from any calendar. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="day-of-week-0"><div class="header-wrapper"><h4 id="time:dayOfWeek"><bdi class="secno">4.2.4 </bdi>day of week</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:dayOfWeek" aria-label="Permalink for Section 4.2.4"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:dayOfWeek">time:dayOfWeek</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>The day of week, whose value is a member of the class <code><a href="https://www.w3.org/TR/owl-time/#time:DayOfWeek">time:DayOfWeek</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:DayOfWeek">time:DayOfWeek</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="day-of-year"><div class="header-wrapper"><h4 id="time:dayOfYear"><bdi class="secno">4.2.5 </bdi>day of year</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:dayOfYear" aria-label="Permalink for Section 4.2.5"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:dayOfYear">time:dayOfYear</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>The number of the day within the year</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#nonNegativeInteger">xsd:nonNegativeInteger</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="days-duration"><div class="header-wrapper"><h4 id="time:days"><bdi class="secno">4.2.6 </bdi>days duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:days" aria-label="Permalink for Section 4.2.6"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:days">time:days</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>length of, or element of the length of, a temporal extent expressed in days </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">time:GeneralDurationDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="has-beginning"><div class="header-wrapper"><h4 id="time:hasBeginning"><bdi class="secno">4.2.7 </bdi>has beginning</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:hasBeginning" aria-label="Permalink for Section 4.2.7"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:hasBeginning">time:hasBeginning</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Beginning of a temporal entity. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:TemporalEntity</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="has-date-time-description"><div class="header-wrapper"><h4 id="time:hasDateTimeDescription"><bdi class="secno">4.2.8 </bdi>has date-time description</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:hasDateTimeDescription" aria-label="Permalink for Section 4.2.8"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:hasDateTimeDescription">time:hasDateTimeDescription</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Position and extent of <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">time:DateTimeInterval</a></code> expressed as a structured value.
|
||
The beginning and end of the interval coincide with the limits of the shortest element in the description.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">time:DateTimeInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="has-duration"><div class="header-wrapper"><h4 id="time:hasDuration"><bdi class="secno">4.2.9 </bdi>has duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:hasDuration" aria-label="Permalink for Section 4.2.9"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:hasDuration">time:hasDuration</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Duration of a temporal entity, expressed as a scaled value or nominal value</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subproperty of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasTemporalDuration">time:hasTemporalDuration</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Duration">time:Duration</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="has-duration-description"><div class="header-wrapper"><h4 id="time:hasDurationDescription"><bdi class="secno">4.2.10 </bdi>has duration description</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:hasDurationDescription" aria-label="Permalink for Section 4.2.10"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:hasDurationDescription">time:hasDurationDescription</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Duration of a temporal entity, expressed using a structured description </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subproperty of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasTemporalDuration">time:hasTemporalDuration</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:DurationDescription">time:DurationDescription</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="has-end"><div class="header-wrapper"><h4 id="time:hasEnd"><bdi class="secno">4.2.11 </bdi>has end</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:hasEnd" aria-label="Permalink for Section 4.2.11"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:hasEnd">time:hasEnd</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>End of a temporal entity. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:TemporalEntity</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="has-temporal-duration"><div class="header-wrapper"><h4 id="time:hasTemporalDuration"><bdi class="secno">4.2.12 </bdi>has temporal duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:hasTemporalDuration" aria-label="Permalink for Section 4.2.12"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:hasTemporalDuration">time:hasTemporalDuration</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Duration of a temporal entity</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:TemporalEntity</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalDuration">time:TemporalDuration</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="has-time"><div class="header-wrapper"><h4 id="time:hasTime"><bdi class="secno">4.2.13 </bdi>has time</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:hasTime" aria-label="Permalink for Section 4.2.13"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<thead>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:hasTime">time:hasTime</a></code></th>
|
||
</tr>
|
||
</thead>
|
||
<tbody>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Supports the association of a temporal entity (instant or interval) to any thing.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:TemporalEntity</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="temporal-reference-system-used"><div class="header-wrapper"><h4 id="time:hasTRS"><bdi class="secno">4.2.14 </bdi>temporal reference system used</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:hasTRS" aria-label="Permalink for Section 4.2.14"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">time:hasTRS</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>The temporal reference system used by a temporal position or extent description. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:FunctionalProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalPosition">time:TemporalPosition</a> or <a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">time:GeneralDurationDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TRS">time:TRS</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="has-xsd-duration"><div class="header-wrapper"><h4 id="time:hasXSDDuration"><bdi class="secno">4.2.15 </bdi>has XSD duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:hasXSDDuration" aria-label="Permalink for Section 4.2.15"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTimeStamp">time:hasXSDDuration</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Extent of a temporal entity, expressed using <code><a href="https://www.w3.org/TR/xmlschema11-2/#duration">xsd:duration</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:TemporalEntity</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#duration">xsd:duration</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="hour"><div class="header-wrapper"><h4 id="time:hour"><bdi class="secno">4.2.16 </bdi>hour</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:hour" aria-label="Permalink for Section 4.2.16"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:hour">time:hour</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Hour position in a calendar-clock system </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#nonNegativeInteger">xsd:nonNegativeInteger</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="hours-duration"><div class="header-wrapper"><h4 id="time:hours"><bdi class="secno">4.2.17 </bdi>hours duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:hours" aria-label="Permalink for Section 4.2.17"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:hours">time:hours</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>length of, or element of the length of, a temporal extent expressed in hours </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">time:GeneralDurationDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="in-date-time-description"><div class="header-wrapper"><h4 id="time:inDateTime"><bdi class="secno">4.2.18 </bdi>in date-time description</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:inDateTime" aria-label="Permalink for Section 4.2.18"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:inDateTime">time:inDateTime</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Position of an instant, expressed using a structured description </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subproperty of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:inTemporalPosition">time:inTemporalPosition</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="has-time-instant-inside"><div class="header-wrapper"><h4 id="time:inside"><bdi class="secno">4.2.19 </bdi>has time instant inside</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:inside" aria-label="Permalink for Section 4.2.19"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:inside">time:inside</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>An instant that falls inside the interval. It is not intended to include beginnings and ends of
|
||
intervals. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Interval">time:Interval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="temporal-position-0"><div class="header-wrapper"><h4 id="time:inTemporalPosition"><bdi class="secno">4.2.20 </bdi>temporal position</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:inTemporalPosition" aria-label="Permalink for Section 4.2.20"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:inTemporalPosition">time:inTemporalPosition</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Position of a time instant</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalPosition">time:TemporalPosition</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-after"><div class="header-wrapper"><h4 id="time:intervalAfter"><bdi class="secno">4.2.21 </bdi>interval after</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalAfter" aria-label="Permalink for Section 4.2.21"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalAfter">time:intervalAfter</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalAfter </em>another proper interval T<sub>2</sub>,
|
||
then the beginning of T<sub>1</sub> is after the end of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>SubProperty of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:after">time:after</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>SubProperty of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalDisjoint">time:intervalDisjoint</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalBefore">time:intervalBefore</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-before"><div class="header-wrapper"><h4 id="time:intervalBefore"><bdi class="secno">4.2.22 </bdi>interval before</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalBefore" aria-label="Permalink for Section 4.2.22"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalBefore">time:intervalBefore</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalBefore </em>another proper interval T<sub>2</sub>,
|
||
then the end of T<sub>1</sub> is before the beginning of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>SubProperty of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:before">time:before</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>SubProperty of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalDisjoint">time:intervalDisjoint</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalAfter">time:intervalAfter</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-contains"><div class="header-wrapper"><h4 id="time:intervalContains"><bdi class="secno">4.2.23 </bdi>interval contains</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalContains" aria-label="Permalink for Section 4.2.23"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalContains">time:intervalContains</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalContains </em>another proper interval T<sub>2</sub>,
|
||
then the beginning of T<sub>1</sub> is before the beginning of T<sub>2</sub>, and the end of T<sub>1</sub>
|
||
is after the end of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalDuring">time:intervalDuring</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-disjoint"><div class="header-wrapper"><h4 id="time:intervalDisjoint"><bdi class="secno">4.2.24 </bdi>interval disjoint</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalDisjoint" aria-label="Permalink for Section 4.2.24"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalDisjoint">time:intervalDisjoint</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalDisjoint</em> another proper interval T<sub>2</sub>,
|
||
then the beginning of T<sub>1</sub> is after the end of T<sub>2</sub>, or the end of T<sub>1</sub>
|
||
is before the beginning of T<sub>2</sub>, i.e. the intervals do not overlap in any way, but their ordering relationship is not known. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-during"><div class="header-wrapper"><h4 id="time:intervalDuring"><bdi class="secno">4.2.25 </bdi>interval during</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalDuring" aria-label="Permalink for Section 4.2.25"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalDuring">time:intervalDuring</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalDuring </em>another proper interval T<sub>2</sub>,
|
||
then the beginning of T<sub>1</sub> is after the beginning of T<sub>2</sub>, and the end of T<sub>1</sub>
|
||
is before the end of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalContains">time:intervalContains</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-equals"><div class="header-wrapper"><h4 id="time:intervalEquals"><bdi class="secno">4.2.26 </bdi>interval equals</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalEquals" aria-label="Permalink for Section 4.2.26"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalEquals">time:intervalEquals</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalEquals </em>another proper interval T<sub>2</sub>,
|
||
then the beginning of T<sub>1</sub> is coincident with the beginning of T<sub>2</sub>, and the end of T<sub>1</sub> is coincident with
|
||
the end of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Disjoint with:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalIn">time:intervalIn</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-finished-by"><div class="header-wrapper"><h4 id="time:intervalFinishedBy"><bdi class="secno">4.2.27 </bdi>interval finished by</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalFinishedBy" aria-label="Permalink for Section 4.2.27"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishedBy">time:intervalFinishedBy</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalFinishedBy </em>another proper interval T<sub>2</sub>,
|
||
then the beginning of T<sub>1</sub> is before the beginning of T<sub>2</sub>, and the end of T<sub>1</sub>
|
||
is coincident with the end of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishes">time:intervalFinishes</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-finishes"><div class="header-wrapper"><h4 id="time:intervalFinishes"><bdi class="secno">4.2.28 </bdi>interval finishes</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalFinishes" aria-label="Permalink for Section 4.2.28"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishes">time:intervalFinishes</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalFinishes </em>another proper interval T<sub>2</sub>,
|
||
then the beginning of T<sub>1</sub> is after the beginning of T<sub>2</sub>, and the end of T<sub>1</sub>
|
||
is coincident with the end of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>SubProperty of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalIn">time:intervalIn</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishedBy">time:intervalFinishedBy</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-in"><div class="header-wrapper"><h4 id="time:intervalIn"><bdi class="secno">4.2.29 </bdi>interval in</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalIn" aria-label="Permalink for Section 4.2.29"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalIn">time:intervalIn</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalIn</em> another proper interval T<sub>2</sub>, then the beginning of T<sub>1</sub> is after the beginning of T<sub>2</sub> or is coincident with the beginning of T<sub>2</sub>, and the end of T<sub>1</sub> is before the end of T<sub>2</sub> or is coincident with the end of T<sub>2</sub>, except that end of T<sub>1</sub> may not be coincident with the end of T<sub>2</sub> if the beginning of T<sub>1</sub> is coincident with the beginning of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Disjoint with:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalEquals">time:intervalEquals</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-meets"><div class="header-wrapper"><h4 id="time:intervalMeets"><bdi class="secno">4.2.30 </bdi>interval meets</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalMeets" aria-label="Permalink for Section 4.2.30"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalMeets">time:intervalMeets</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalMeets </em>another proper interval T<sub>2</sub>,
|
||
then the end of T<sub>1</sub> is coincident with the beginning of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalMetBy">time:intervalMetBy</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-met-by"><div class="header-wrapper"><h4 id="time:intervalMetBy"><bdi class="secno">4.2.31 </bdi>interval met by</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalMetBy" aria-label="Permalink for Section 4.2.31"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalMetBy">time:intervalMetBy</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalMetBy </em>another proper interval T<sub>2</sub>,
|
||
then the beginning of T<sub>1</sub> is coincident with the end of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalMeets">time:intervalMeets</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-overlapped-by"><div class="header-wrapper"><h4 id="time:intervalOverlappedBy"><bdi class="secno">4.2.32 </bdi>interval overlapped by</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalOverlappedBy" aria-label="Permalink for Section 4.2.32"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalOverlappedBy">time:intervalOverlappedBy</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalOverlappedBy </em>another proper interval T<sub>2</sub>,
|
||
then the beginning of T<sub>1</sub> is after the beginning of T<sub>2</sub>, the beginning of T<sub>1</sub>
|
||
is before the end of T<sub>2</sub>, and the end of T<sub>1</sub> is after the end of T<sub>2</sub>.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalOverlaps">time:intervalOverlaps</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-overlaps"><div class="header-wrapper"><h4 id="time:intervalOverlaps"><bdi class="secno">4.2.33 </bdi>interval overlaps</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalOverlaps" aria-label="Permalink for Section 4.2.33"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalOverlaps">time:intervalOverlaps</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalOverlaps</em> another proper interval T<sub>2</sub>,
|
||
then the beginning of T<sub>1</sub> is before the beginning of T<sub>2</sub>, the end of T<sub>1</sub>
|
||
is after the beginning of T<sub>2</sub>, and the end of T<sub>1</sub> is before the end of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalOverlappedBy">time:intervalOverlappedBy</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-started-by"><div class="header-wrapper"><h4 id="time:intervalStartedBy"><bdi class="secno">4.2.34 </bdi>interval started by</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalStartedBy" aria-label="Permalink for Section 4.2.34"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalStartedBy">time:intervalStartedBy</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalStartedBy</em> another proper interval T<sub>2</sub>,
|
||
then the beginning of T<sub>1</sub> is coincident with the beginning of T<sub>2</sub>, and the end of T<sub>1</sub> is
|
||
after the end of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalStarts">time:intervalStarts</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="interval-starts"><div class="header-wrapper"><h4 id="time:intervalStarts"><bdi class="secno">4.2.35 </bdi>interval starts</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:intervalStarts" aria-label="Permalink for Section 4.2.35"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:intervalStarts">time:intervalStarts</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>If a proper interval T<sub>1</sub> is <em>intervalStarts</em> another proper interval T<sub>2</sub>,
|
||
then the beginning of T<sub>1</sub> is coincident with the beginning of T<sub>2</sub>, and the end of T<sub>1</sub> is
|
||
before the end of T<sub>2</sub>. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">time:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>SubProperty of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalIn">time:intervalIn</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Inverse of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalStartedBy">time:intervalStartedBy</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="time-position-1"><div class="header-wrapper"><h4 id="time:inTimePosition"><bdi class="secno">4.2.36 </bdi>time position</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:inTimePosition" aria-label="Permalink for Section 4.2.36"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:inTimePosition">time:inTimePosition</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Position of an instant, expressed as a temporal coordinate or nominal value </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">time:TimePosition</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subproperty of:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:inTemporalPosition">time:inTemporalPosition</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="in-xsd-date"><div class="header-wrapper"><h4 id="time:inXSDDate"><bdi class="secno">4.2.37 </bdi>in XSD date</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:inXSDDate" aria-label="Permalink for Section 4.2.37"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDate">time:inXSDDate</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Position of an instant, expressed using xsd:date</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#date">xsd:date</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="in-xsd-date-time"><div class="header-wrapper"><h4 id="time:inXSDDateTime"><bdi class="secno">4.2.38 </bdi>in XSD date-time</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:inXSDDateTime" aria-label="Permalink for Section 4.2.38"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTime">time:inXSDDateTime</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Position of an instant, expressed using <code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTime">xsd:dateTime</a></code> </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DeprecatedProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTime">xsd:dateTime</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Deprecated:</td>
|
||
<td><code>true</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<div class="note" role="note" id="issue-container-generatedID-9"><div role="heading" class="note-title marker" id="h-note-9" aria-level="5"><span>Note</span></div><p class="">The property <code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTime">:inXSDDateTime</a></code> is replaced by <code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTimeStamp">:inXSDDateTimeStamp</a></code> which makes the time-zone field mandatory. </p></div>
|
||
</section>
|
||
|
||
<section id="in-xsd-date-time-stamp"><div class="header-wrapper"><h4 id="time:inXSDDateTimeStamp"><bdi class="secno">4.2.39 </bdi>in XSD date-time-stamp</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:inXSDDateTimeStamp" aria-label="Permalink for Section 4.2.39"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTimeStamp">time:inXSDDateTimeStamp</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Position of an instant, expressed using <code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTimeStamp">xsd:dateTimeStamp</a></code>, in which the time-zone field is mandatory</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTimeStamp">xsd:dateTimeStamp</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="in-xsd-gyear"><div class="header-wrapper"><h4 id="time:inXSDgYear"><bdi class="secno">4.2.40 </bdi>in XSD gYear</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:inXSDgYear" aria-label="Permalink for Section 4.2.40"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:inXSDgYear">time:inXSDgYear</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Position of an instant, expressed using xsd:gYear</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#gYear">xsd:gYear</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="in-xsd-gyearmonth"><div class="header-wrapper"><h4 id="time:inXSDgYearMonth"><bdi class="secno">4.2.41 </bdi>in XSD gYearMonth</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:inXSDgYearMonth" aria-label="Permalink for Section 4.2.41"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:inXSDgYearMonth">time:inXSDgYearMonth</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Position of an instant, expressed using xsd:gYearMonth</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">time:Instant</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#gYearMonth">xsd:gYearMonth</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="minute"><div class="header-wrapper"><h4 id="time:minute"><bdi class="secno">4.2.42 </bdi>minute</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:minute" aria-label="Permalink for Section 4.2.42"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:minute">time:minute</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Minute position in a calendar-clock system </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#nonNegativeInteger">xsd:nonNegativeInteger</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="minutes-duration"><div class="header-wrapper"><h4 id="time:minutes"><bdi class="secno">4.2.43 </bdi>minutes duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:minutes" aria-label="Permalink for Section 4.2.43"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:minutes">time:minutes</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>length of, or element of the length of, a temporal extent expressed in minutes </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">time:GeneralDurationDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="month"><div class="header-wrapper"><h4 id="time:month"><bdi class="secno">4.2.44 </bdi>month</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:month" aria-label="Permalink for Section 4.2.44"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:month">time:month</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Month position in a calendar-clock system.
|
||
|
||
The range of this property is not specified, so can be replaced by any specific representation of a calendar month from any calendar. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="month-of-year-0"><div class="header-wrapper"><h4 id="time:monthOfYear"><bdi class="secno">4.2.45 </bdi>month of year</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:monthOfYear" aria-label="Permalink for Section 4.2.45"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:monthOfYear">time:monthOfYear</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>The month of the year, whose value is a member of the class <code><a href="https://www.w3.org/TR/owl-time/#time:MonthOfYear">time:MonthOfYear</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:MonthOfYear">time:MonthOfYear</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="months-duration"><div class="header-wrapper"><h4 id="time:months"><bdi class="secno">4.2.46 </bdi>months duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:months" aria-label="Permalink for Section 4.2.46"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:months">time:months</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>length of, or element of the length of, a temporal extent expressed in months </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">time:GeneralDurationDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="name-of-temporal-position"><div class="header-wrapper"><h4 id="time:nominalPosition"><bdi class="secno">4.2.47 </bdi>name of temporal position</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:nominalPosition" aria-label="Permalink for Section 4.2.47"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:nominalPosition">time:nominalPosition</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>The (nominal) value indicating temporal position in an ordinal reference system </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">time:TimePosition</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#string">xsd:string</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="numeric-value-of-temporal-duration"><div class="header-wrapper"><h4 id="time:numericDuration"><bdi class="secno">4.2.48 </bdi>numeric value of temporal duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:numericDuration" aria-label="Permalink for Section 4.2.48"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:numericDuration">time:numericDuration</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Value of a temporal extent expressed as a number scaled by a temporal unit</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Duration">time:Duration</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="numeric-value-of-temporal-position"><div class="header-wrapper"><h4 id="time:numericPosition"><bdi class="secno">4.2.49 </bdi>numeric value of temporal position</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:numericPosition" aria-label="Permalink for Section 4.2.49"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:numericPosition">time:numericPosition</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>The (numeric) value indicating position within a temporal coordinate system </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">time:TimePosition</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="second"><div class="header-wrapper"><h4 id="time:second"><bdi class="secno">4.2.50 </bdi>second</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:second" aria-label="Permalink for Section 4.2.50"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:second">time:second</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Second position in a calendar-clock system. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="seconds-duration"><div class="header-wrapper"><h4 id="time:seconds"><bdi class="secno">4.2.51 </bdi>seconds duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:seconds" aria-label="Permalink for Section 4.2.51"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:seconds">time:seconds</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>length of, or element of the length of, a temporal extent expressed in seconds </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">time:GeneralDurationDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="in-time-zone"><div class="header-wrapper"><h4 id="time:timeZone"><bdi class="secno">4.2.52 </bdi>in time zone</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:timeZone" aria-label="Permalink for Section 4.2.52"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:timeZone">time:timeZone</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>The time zone for clock elements in the temporal position</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TimeZone">time:TimeZone</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<div class="note" role="note" id="issue-container-generatedID-10"><div role="heading" class="note-title marker" id="h-note-10" aria-level="5"><span>Note</span></div><div class="">
|
||
<p>IANA maintains a <a href="http://www.iana.org/time-zones">database of timezones</a>. These are well maintained and generally considered authoritative, but individual items are not available at individual URIs, so cannot be used directly within data expressed using OWL-Time. </p>
|
||
<p>DBPedia provides a <a href="https://en.wikipedia.org/wiki/List_of_tz_database_time_zones">set of resources corresponding to the IANA timezones</a>, with a URI for each (e.g. <a href="http://dbpedia.org/resource/Australia/Eucla">http://dbpedia.org/resource/Australia/Eucla</a>). The World Clock service also provides a <a href="https://www.timeanddate.com/time/zones/">list of time zones</a> with the description of each available as an individual webpage with a convenient individual URI (e.g. <a href="https://www.timeanddate.com/time/zones/acwst">https://www.timeanddate.com/time/zones/acwst</a>). These or other, similar, resources might be used as a value of the <code><a href="https://www.w3.org/TR/owl-time/#time:timeZone">time:timeZone</a></code> property. </p>
|
||
</div></div>
|
||
</section>
|
||
|
||
<section id="temporal-unit-type"><div class="header-wrapper"><h4 id="time:unitType"><bdi class="secno">4.2.53 </bdi>temporal unit type</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:unitType" aria-label="Permalink for Section 4.2.53"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:unitType">time:unitType</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>The temporal unit which provides the precision of a date-time value or scale of a temporal extent</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:ObjectProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a> or <a href="https://www.w3.org/TR/owl-time/#time:Duration">time:Duration</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalUnit">time:TemporalUnit</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="week"><div class="header-wrapper"><h4 id="time:week"><bdi class="secno">4.2.54 </bdi>week</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:week" aria-label="Permalink for Section 4.2.54"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:week">time:week</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Week number within the year. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#nonNegativeInteger">xsd:nonNegativeInteger</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
<div class="note" role="note" id="issue-container-generatedID-11"><div role="heading" class="note-title marker" id="h-note-11" aria-level="5"><span>Note</span></div><div class="">
|
||
<p>Weeks are numbered differently depending on the calendar in use and the local language or cultural conventions (locale). ISO-8601 specifies that the first week of the year includes at least four days, and that Monday is the first day of the week. In that system, week 1 is the week that contains the first Thursday in the year.</p>
|
||
</div></div>
|
||
|
||
</section>
|
||
|
||
<section id="weeks-duration"><div class="header-wrapper"><h4 id="time:weeks"><bdi class="secno">4.2.55 </bdi>weeks duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:weeks" aria-label="Permalink for Section 4.2.55"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:weeks">:weeks</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>length of, or element of the length of, a temporal extent expressed in weeks </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">time:GeneralDurationDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="has-xsd-date-time"><div class="header-wrapper"><h4 id="time:xsdDateTime"><bdi class="secno">4.2.56 </bdi>has XSD date-time</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:xsdDateTime" aria-label="Permalink for Section 4.2.56"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:xsdDateTime">time:xsdDateTime</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Value of <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">time:DateTimeInterval</a></code> expressed as a compact value. The beginning and end of the interval coincide with the limits of the smallest non-zero element of the value.</td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DeprecatedProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">time:DateTimeInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTime">xsd:dateTime</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Deprecated:</td>
|
||
<td><code>true</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
<div class="note" role="note" id="issue-container-generatedID-12"><div role="heading" class="note-title marker" id="h-note-12" aria-level="5"><span>Note</span></div><p class="">Using <code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTime">xsd:dateTime</a></code> in this place means that the duration of the interval is implicit: it corresponds to the length of the smallest non-zero element of the date-time literal. However, this rule cannot be used for intervals whose duration is more than one rank smaller than the starting time - e.g. the first minute or second of a day, the first hour of a month, or the first day of a year. In these cases the desired interval cannot be distinguished from the interval corresponding to the next rank up. Because of this essential ambiguity, use of this property is not recommended and it is deprecated. </p></div>
|
||
</section>
|
||
|
||
<section id="year"><div class="header-wrapper"><h4 id="time:year"><bdi class="secno">4.2.57 </bdi>year</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:year" aria-label="Permalink for Section 4.2.57"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:year">time:year</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Year position in a calendar-clock system.
|
||
|
||
The range of this property is not specified, so can be replaced by any specific representation of a calendar year from any calendar. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">time:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="years-duration"><div class="header-wrapper"><h4 id="time:years"><bdi class="secno">4.2.58 </bdi>years duration</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:years" aria-label="Permalink for Section 4.2.58"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Property:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:years">time:years</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>length of, or element of the length of, a temporal extent expressed in years </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>owl:DatatypeProperty</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Domain:</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">time:GeneralDurationDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Range:</td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
</section>
|
||
|
||
<section id="Datatypes"><div class="header-wrapper"><h3 id="x4-3-datatypes"><bdi class="secno">4.3 </bdi>Datatypes</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#Datatypes" aria-label="Permalink for Section 4.3"></a></div>
|
||
|
||
|
||
<p>
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:generalDay">:generalDay</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:generalMonth">:generalMonth</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:generalYear">:generalYear</a></code>
|
||
</p>
|
||
|
||
<section id="generalday"><div class="header-wrapper"><h4 id="time:generalDay"><bdi class="secno">4.3.1 </bdi>generalDay</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:generalDay" aria-label="Permalink for Section 4.3.1"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:generalDay">time:generalDay</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Day of month - formulated as a text string with a pattern constraint to reproduce the <a href="https://www.w3.org/TR/xmlschema11-2/#nt-gDayRep">same lexical form as <code>xsd:gDay</code></a>,
|
||
except that values up to 99 are permitted, in order to support calendars with more than 31 days in a month.
|
||
Note that the value-space is not defined, so a generic OWL2 processor cannot compute ordering relationships of values of this type. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>rdfs:Datatype</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><pre aria-busy="false"><code class="hljs css">owl:onDatatype xsd:string ;
|
||
owl:withRestrictions (
|
||
[
|
||
xsd:pattern <span class="hljs-string">"---(0[1-9]|[1-9][0-9])(Z|(\\+|-)((0[0-9]|1[0-3]):[0-5][0-9]|14:00))?"</span>^^xsd:string ;
|
||
]
|
||
)</code></pre></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="generalmonth"><div class="header-wrapper"><h4 id="time:generalMonth"><bdi class="secno">4.3.2 </bdi>generalMonth</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:generalMonth" aria-label="Permalink for Section 4.3.2"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:generalMonth">time:generalMonth</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Month of year - formulated as a text string with a pattern constraint to reproduce the <a href="https://www.w3.org/TR/xmlschema11-2/#nt-gMonthRep">same lexical form as <code>xsd:gMonth</code></a>,
|
||
except that values up to 20 are permitted, in order to support calendars with more than 12 months in the year.
|
||
Note that the value-space is not defined, so a generic OWL2 processor cannot compute ordering relationships of values of this type. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>rdfs:Datatype</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><pre aria-busy="false"><code class="hljs css">owl:onDatatype xsd:string ;
|
||
owl:withRestrictions (
|
||
[
|
||
xsd:pattern <span class="hljs-string">"--(0[1-9]|1[0-9]|20)(Z|(\\+|-)((0[0-9]|1[0-3]):[0-5][0-9]|14:00))?"</span>^^xsd:string ;
|
||
]
|
||
)</code></pre></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="generalyear"><div class="header-wrapper"><h4 id="time:generalYear"><bdi class="secno">4.3.3 </bdi>generalYear</h4><a class="self-link" href="https://www.w3.org/TR/owl-time/#time:generalYear" aria-label="Permalink for Section 4.3.3"></a></div>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class:</th>
|
||
<th><code><a href="https://www.w3.org/TR/owl-time/#time:generalYear">time:generalYear</a></code></th>
|
||
</tr>
|
||
<tr>
|
||
<td>Definition:</td>
|
||
<td>Year number - formulated as a text string with a pattern constraint to reproduce the <a href="https://www.w3.org/TR/xmlschema11-2/#nt-gYearRep">same lexical form as <code>xsd:gYear</code></a>, but not restricted to values from the Gregorian calendar.
|
||
Note that the value-space is not defined, so a generic OWL2 processor cannot compute ordering relationships of values of this type. </td>
|
||
</tr>
|
||
<tr>
|
||
<td>Instance of:</td>
|
||
<td><code>rdfs:Datatype</code></td>
|
||
</tr>
|
||
<tr>
|
||
<td>Subclass of:</td>
|
||
<td><pre aria-busy="false"><code class="hljs css">owl:onDatatype xsd:string ;
|
||
owl:withRestrictions (
|
||
[
|
||
xsd:pattern <span class="hljs-string">"-?([1-9][0-9]{3,}|0[0-9]{3})(Z|(\\+|-)((0[0-9]|1[0-3]):[0-5][0-9]|14:00))?"</span>^^xsd:string ;
|
||
]
|
||
)</code></pre></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
</section>
|
||
|
||
<section id="Individuals"><div class="header-wrapper"><h3 id="x4-4-individuals"><bdi class="secno">4.4 </bdi>Individuals</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#Individuals" aria-label="Permalink for Section 4.4"></a></div>
|
||
|
||
|
||
<p>
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:Friday">:Friday</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:Monday">:Monday</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:Saturday">:Saturday</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:Sunday">:Sunday</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:Thursday">:Thursday</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:Tuesday">:Tuesday</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:Wednesday">:Wednesday</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:unitCentury">:unitCentury</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:unitDay">:unitDay</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:unitDecade">:unitDecade</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:unitHour">:unitHour</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:unitMillenium">:unitMillenium</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:unitMinute">:unitMinute</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:unitMonth">:unitMonth</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:unitSecond">:unitSecond</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:unitWeek">:unitWeek</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:unitYear">:unitYear</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:April">greg:April</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:August">greg:August</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:December">greg:December</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:February">greg:February</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:January">greg:January</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:July">greg:July</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:June">greg:June</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:March">greg:March</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:May">greg:May</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:November">greg:November</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:October">greg:October</a></code> |
|
||
<code><a href="https://www.w3.org/TR/owl-time/#greg:September">greg:September</a></code>
|
||
</p>
|
||
|
||
<table class="definition" style="width: 812px;">
|
||
<tbody>
|
||
<tr>
|
||
<th style="width: 120px;">Class</th>
|
||
<th>Individual</th>
|
||
</tr>
|
||
<tr id="time:Friday">
|
||
<td rowspan="7"><code><a href="https://www.w3.org/TR/owl-time/#time:DayOfWeek">time:DayOfWeek</a></code></td>
|
||
<td><code>time:Friday</code></td>
|
||
</tr>
|
||
<tr id="time:Monday">
|
||
<td><code>time:Monday</code></td>
|
||
</tr>
|
||
<tr id="time:Saturday">
|
||
<td><code>time:Saturday</code></td>
|
||
</tr>
|
||
<tr id="time:Sunday">
|
||
<td><code>time:Sunday</code></td>
|
||
</tr>
|
||
<tr id="time:Thursday">
|
||
<td><code>time:Thursday</code></td>
|
||
</tr>
|
||
<tr id="time:Tuesday">
|
||
<td><code>time:Tuesday</code></td>
|
||
</tr>
|
||
<tr id="time:Wednesday">
|
||
<td><code>time:Wednesday</code></td>
|
||
</tr>
|
||
<tr id="greg:April">
|
||
<td rowspan="12"><code><a href="https://www.w3.org/TR/owl-time/#time:MonthOfYear">time:MonthOfYear</a></code></td>
|
||
<td><code>greg:April</code></td>
|
||
</tr>
|
||
<tr id="greg:August">
|
||
<td><code>greg:August</code></td>
|
||
</tr>
|
||
<tr id="greg:December">
|
||
<td><code>greg:December</code></td>
|
||
</tr>
|
||
<tr id="greg:February">
|
||
<td><code>greg:February</code></td>
|
||
</tr>
|
||
<tr id="greg:January">
|
||
<td><code>greg:January</code></td>
|
||
</tr>
|
||
<tr id="greg:July">
|
||
<td><code>greg:July</code></td>
|
||
</tr>
|
||
<tr id="greg:June">
|
||
<td><code>greg:June</code></td>
|
||
</tr>
|
||
<tr id="greg:March">
|
||
<td><code>greg:March</code></td>
|
||
</tr>
|
||
<tr id="greg:May">
|
||
<td><code>greg:May</code></td>
|
||
</tr>
|
||
<tr id="greg:November">
|
||
<td><code>greg:November</code></td>
|
||
</tr>
|
||
<tr id="greg:October">
|
||
<td><code>greg:October</code></td>
|
||
</tr>
|
||
<tr id="greg:September">
|
||
<td><code>greg:September</code></td>
|
||
</tr>
|
||
<tr id="time:unitCentury">
|
||
<td rowspan="10"><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalUnit">time:TemporalUnit</a></code></td>
|
||
<td><code>time:unitCentury</code></td>
|
||
</tr>
|
||
<tr id="time:unitDay">
|
||
<td><code>time:unitDay</code></td>
|
||
</tr>
|
||
<tr id="time:unitDecade">
|
||
<td><code>time:unitDecade</code></td>
|
||
</tr>
|
||
<tr id="time:unitHour">
|
||
<td><code>time:unitHour</code></td>
|
||
</tr>
|
||
<tr id="time:unitMillenium">
|
||
<td><code>time:unitMillenium</code></td>
|
||
</tr>
|
||
<tr id="time:unitMinute">
|
||
<td><code>time:unitMinute</code></td>
|
||
</tr>
|
||
<tr id="time:unitMonth">
|
||
<td><code>time:unitMonth</code></td>
|
||
</tr>
|
||
<tr id="time:unitSecond">
|
||
<td><code>time:unitSecond</code></td>
|
||
</tr>
|
||
<tr id="time:unitWeek">
|
||
<td><code>time:unitWeek</code></td>
|
||
</tr>
|
||
<tr id="time:unitYear">
|
||
<td><code>time:unitYear</code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
|
||
|
||
|
||
</section>
|
||
|
||
</section>
|
||
|
||
<section id="examples" class="informative"><div class="header-wrapper"><h2 id="x5-examples"><bdi class="secno">5. </bdi>Examples</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#examples" aria-label="Permalink for Section 5."></a></div><p><em>This section is non-normative.</em></p>
|
||
|
||
|
||
<section id="dtd-vs-dt"><div class="header-wrapper"><h3 id="x5-1-datetimedescription-vs-datetime"><bdi class="secno">5.1 </bdi>DateTimeDescription vs dateTime</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#dtd-vs-dt" aria-label="Permalink for Section 5.1"></a></div>
|
||
|
||
<p>The following example illustrates the difference between using <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code> and using
|
||
the XML datatype <code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTimeStamp">xsd:dateTimeStamp</a></code>. An instant that represents the start of a meeting, called <code>ex:meetingStart</code>,
|
||
happens at 10:30am AEST on 12 Apr 2017 can be expressed using both <code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTimeStamp">:inXSDDateTimeStamp</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:inDateTime">:inDateTime</a></code>
|
||
in OWL as:</p>
|
||
<pre aria-busy="false"><code class="hljs css">ex:meetingStart
|
||
a :Instant ;
|
||
:inDateTime ex:meetingStartDescription ;
|
||
:inXSDDateTimeStamp <span class="hljs-number">2017</span>-<span class="hljs-number">04</span>-<span class="hljs-number">12</span>T10:<span class="hljs-number">30</span>:<span class="hljs-number">00</span>+<span class="hljs-number">10</span>:<span class="hljs-number">00</span> .
|
||
|
||
ex:meetingStartDescription
|
||
a :DateTimeDescription ;
|
||
:unitType :unitMinute ;
|
||
:minute <span class="hljs-number">30</span> ;
|
||
:hour <span class="hljs-number">10</span> ;
|
||
:day <span class="hljs-string">"---12"</span>^^xsd:gDay ;
|
||
:dayOfWeek :Wednesday ;
|
||
:dayOfYear <span class="hljs-number">102</span> ;
|
||
:week <span class="hljs-number">15</span> ;
|
||
:month <span class="hljs-string">"--04"</span>^^xsd:gMonth ;
|
||
:monthOfYear greg:April ;
|
||
:timeZone <https://www.timeanddate.com/time/zones/aest> ;
|
||
:year <span class="hljs-string">"2017"</span>^^xsd:gYear .</code></pre>
|
||
|
||
<p>It is much more concise to use the XML Schema datatype <code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTimeStamp">xsd:dateTimeStamp</a></code>.
|
||
However, using <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code> more information can be included directly in a message, such as the "week", "day of week" and "day of year".
|
||
In the example we can also see that 12/04/2017 is a Wednesday, the month is April, it is the 102<sup>nd</sup> day of the year, and in the 15<sup>th</sup> week of the year.
|
||
Since each field of <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code> is separate no computation is required to get the values of these fields for use in reasoning.
|
||
However, since some calendars, such as religious observationally-based ones, cannot be algorithmically calculated explicit assertion of values for elements of the calendar is required.</p>
|
||
<p>The <code><a href="https://www.w3.org/TR/owl-time/#time:timeZone">:timeZone</a></code> property points to a definition of Australian Eastern Standard Time. </p>
|
||
</section>
|
||
|
||
<section id="different-TRS"><div class="header-wrapper"><h3 id="x5-2-use-of-temporal-reference-systems"><bdi class="secno">5.2 </bdi>Use of temporal reference systems</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#different-TRS" aria-label="Permalink for Section 5.2"></a></div>
|
||
|
||
<p>The use of different temporal reference systems for the same absolute time is illustrated in the following
|
||
examples. Abby's birthday is an <code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code> whose position may be expressed using the conventional
|
||
XSD <code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTimeStamp">xsd:dateTimeStamp</a></code> type as <code>2001-05-23T08:20:00+08:00</code>:</p>
|
||
<pre aria-busy="false"><code class="hljs css">ex:AbbyBirthday
|
||
a :Instant ;
|
||
:inDateTime ex:AbbyBirthdayHebrew ;
|
||
:inTimePosition ex:AbbyBirthdayUnix ;
|
||
rdfs:label <span class="hljs-string">"Abby's birthdate"</span>^^xsd:string ;
|
||
:inDateTime ex:AbbyBirthdayGregorian ;
|
||
:inXSDDateTimeStamp <span class="hljs-string">"2001-05-23T08:20:00+08:00"</span>^^xsd:dateTimeStamp ;
|
||
.</code></pre>
|
||
<p>Using the <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code> class, the elements of the date and time using the Gregorian
|
||
Calendar are split out into separate properties: </p>
|
||
<pre aria-busy="false"><code class="hljs css">ex:AbbyBirthdayGregorian
|
||
a :DateTimeDescription ;
|
||
:day <span class="hljs-string">"---23"</span>^^xsd:gDay ;
|
||
:dayOfWeek :Wednesday ;
|
||
:dayOfYear <span class="hljs-string">"143"</span>^^xsd:nonNegativeInteger ;
|
||
:hour <span class="hljs-string">"8"</span>^^xsd:nonNegativeInteger ;
|
||
:minute <span class="hljs-string">"20"</span>^^xsd:nonNegativeInteger ;
|
||
:month <span class="hljs-string">"--05"</span>^^xsd:gMonth ;
|
||
:monthOfYear greg:May ;
|
||
:timeZone <https://www.timeanddate.com/time/zones/awst> ;
|
||
:unitType :unitMinute ;
|
||
:year <span class="hljs-string">"2001"</span>^^xsd:gYear ;
|
||
.</code></pre>
|
||
<p>The <code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code> class may be used to express the same date using the Hebrew
|
||
calendar: </p>
|
||
<pre aria-busy="false"><code class="hljs css">ex:AbbyBirthdayHebrew
|
||
a :GeneralDateTimeDescription ;
|
||
:day <span class="hljs-string">"---01"</span>^^:generalDay ;
|
||
<span class="hljs-selector-pseudo">:has</span>TRS <http://dbpedia.org/resource/Hebrew_calendar> ;
|
||
:month <span class="hljs-string">"--03"</span>^^:generalMonth ;
|
||
:monthOfYear ex:Sivan ;
|
||
:year <span class="hljs-string">"5761"</span>^^:generalYear ;
|
||
:unitType :unitDay ;
|
||
.</code></pre>
|
||
<p>The <code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">:TimePosition</a></code> class may be used to express the same position in Unix time (also known as Posix time or Epoch time) (i.e.
|
||
the number of seconds since the beginning of 1st January 1970): </p>
|
||
<pre aria-busy="false"><code class="hljs css">ex:AbbyBirthdayUnix
|
||
a :TimePosition ;
|
||
<span class="hljs-selector-pseudo">:has</span>TRS <http://dbpedia.org/resource/Unix_time> ;
|
||
:numericPosition <span class="hljs-number">990577200</span> ;
|
||
rdfs:label <span class="hljs-string">"Abby's birthdate in Unix time"</span>^^xsd:string ;
|
||
.</code></pre>
|
||
<p>Each of these examples refers to either a temporal reference system or time zone described externally, using its URI. RDF representations are available from DBPedia (e.g. <a href="http://dbpedia.org/data/Unix_time.n3">http://dbpedia.org/resource/Unix_time</a>) though these do not have specific time semantics. </p>
|
||
<p>Similar to the way that <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code> is a derived from <code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code> by fixing the <code><a href="https://www.w3.org/TR/owl-time/#time:TRS">:TRS</a></code> to the Gregorian system, a specialized class <code>UnixTime</code> may be derived from <code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">:TimePosition</a></code> by fixing the value of its reference system to the Unix time system:</p>
|
||
<pre aria-busy="false"><code class="hljs css">ex:UnixTime
|
||
rdfs:subClassOf time:TimePosition ;
|
||
rdfs:subClassOf [
|
||
rdf:type owl:Restriction ;
|
||
owl<span class="hljs-selector-pseudo">:has</span>Value <http://dbpedia.org/resource/Unix_time> ;
|
||
owl:onProperty time:hasTRS ;
|
||
] ;
|
||
.</code></pre>
|
||
<p>The RDF representation of this example is available <a href="https://raw.githubusercontent.com/w3c/sdw/gh-pages/time/rdf/OWL-Time-examples.ttl">here</a>.</p>
|
||
</section>
|
||
|
||
<section id="temporal-precision"><div class="header-wrapper"><h3 id="x5-3-temporal-precision"><bdi class="secno">5.3 </bdi>Temporal precision</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#temporal-precision" aria-label="Permalink for Section 5.3"></a></div>
|
||
|
||
<p>For the purposes of radiocarbon dating (which is the technique used in geological age determination for
|
||
materials up to around 60,000 years old) 'the Present' is conventionally fixed at 1950 [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-rc-14" title="The Remarkable Metrological History of Radiocarbon Dating [II]">rc-14</a></cite>].
|
||
This can be described as an individual <code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code>, with its position expressed using any of the
|
||
three alternatives: </p>
|
||
<pre aria-busy="false"><code class="hljs css">geol:Present
|
||
a :Instant ;
|
||
:inDateTime [
|
||
a :DateTimeDescription ;
|
||
:unitType :unitYear ;
|
||
:year <span class="hljs-string">"1950"</span>^^xsd:gYear ;
|
||
] ;
|
||
:inTimePosition [
|
||
a :TimePosition ;
|
||
<span class="hljs-selector-pseudo">:has</span>TRS <http://www.opengis.net/def/crs/OGC/<span class="hljs-number">0</span>/ChronometricGeologicTime> ;
|
||
:numericPosition <span class="hljs-number">0.0</span> ;
|
||
] ;
|
||
:inXSDDateTimeStamp <span class="hljs-string">"1950-01-01T00:00:00Z"</span>^^xsd:dateTimeStamp ;
|
||
rdfs:label <span class="hljs-string">"The present"</span>^^xsd:string ;
|
||
.</code></pre>
|
||
<p>Expressed using <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code> the <code><a href="https://www.w3.org/TR/owl-time/#time:unitType">:unitType</a></code>
|
||
- which determines the precision -
|
||
is set to <code><a href="https://www.w3.org/TR/owl-time/#time:unitYear">:unitYear</a></code>, and only the <code><a href="https://www.w3.org/TR/owl-time/#time:year">:year</a></code> element is provided in the value.
|
||
The TRS value is not provided explicitly, as it is fixed in the ontology description to <a href="http://www.opengis.net/def/uom/ISO-8601/0/Gregorian">http://www.opengis.net/def/uom/ISO-8601/0/Gregorian</a>.
|
||
In the <code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">:TimePosition</a></code> variant, the TRS is given as
|
||
<a href="http://www.opengis.net/def/crs/OGC/0/ChronometricGeologicTime">http://www.opengis.net/def/crs/OGC/0/ChronometricGeologicTime</a>
|
||
which has units of millions of years, starting from the present, positive backwards.
|
||
For the value expressed using <code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTimeStamp">xsd:dateTimeStamp</a></code> the
|
||
position within the year is set arbitrarily to midnight at the beginning of 1st January.
|
||
This level of precision in this case is spurious, but is required to satisfy the lexical pattern of the datatype.</p>
|
||
|
||
<p>Since the <code><a href="https://www.w3.org/TR/owl-time/#time:numericPosition">:numericPosition</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:second">:second</a></code> properties have the datatype of <code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code>, the position of a <code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code> or the duration of a <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code> may be represented with a precision of fractions of seconds if required. For example, a database timestamp with a precision of milliseconds can be expressed as follows: </p>
|
||
|
||
<pre aria-busy="false"><code class="hljs css">ex:DatabaseTimeStamp
|
||
a :Instant ;
|
||
:inXSDDateTimeStamp <span class="hljs-string">"2015-11-01T17:58:16.102Z"</span>^^xsd:dateTimeStamp ;
|
||
:inDateTime [
|
||
a :DateTimeDescription ;
|
||
:day <span class="hljs-string">"---01"</span>^^xsd:gDay ;
|
||
:hour <span class="hljs-string">"17"</span>^^xsd:nonNegativeInteger ;
|
||
:minute <span class="hljs-string">"58"</span>^^xsd:nonNegativeInteger ;
|
||
:month <span class="hljs-string">"--11"</span>^^xsd:gMonth ;
|
||
:second <span class="hljs-number">16.102</span> ;
|
||
:timeZone <http://dbpedia.org/page/Coordinated_Universal_Time> ;
|
||
:year <span class="hljs-string">"2015"</span>^^xsd:gYear ;
|
||
] ;
|
||
:inDateTime [
|
||
a ex:GPSTime ;
|
||
:second <span class="hljs-number">64696.102</span> ;
|
||
:week <span class="hljs-string">"1834"</span>^^xsd:nonNegativeInteger ;
|
||
] ;
|
||
.</code></pre>
|
||
|
||
<p>where <code>ex:GPSTime</code> specializes <code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code> by setting the <code><a href="https://www.w3.org/TR/owl-time/#time:unitType">:unitType</a></code> to <code><a href="https://www.w3.org/TR/owl-time/#time:unitSecond">:unitSecond</a></code>, the <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">:hasTRS</a></code> to the GPS timekeeping system, and suppressing all other properties except for <code><a href="https://www.w3.org/TR/owl-time/#time:week">:week</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:second">:second</a></code>:</p>
|
||
|
||
<pre aria-busy="false"><code class="hljs css">ex:GPSTime
|
||
rdf:type owl:Class ;
|
||
rdfs:comment <span class="hljs-string">"GPS Time is the number of seconds since an epoch in 1980, encoded as the number of weeks + seconds into the week"</span> ;
|
||
rdfs:subClassOf time:GeneralDateTimeDescription ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl:cardinality <span class="hljs-string">"0"</span>^^xsd:nonNegativeInteger ;
|
||
owl:onProperty :day ; ] ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl:cardinality <span class="hljs-string">"0"</span>^^xsd:nonNegativeInteger ;
|
||
owl:onProperty :dayOfWeek ; ] ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl:cardinality <span class="hljs-string">"0"</span>^^xsd:nonNegativeInteger ;
|
||
owl:onProperty :dayOfYear ; ] ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl:cardinality <span class="hljs-string">"0"</span>^^xsd:nonNegativeInteger ;
|
||
owl:onProperty :hour ; ] ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl:cardinality <span class="hljs-string">"0"</span>^^xsd:nonNegativeInteger ;
|
||
owl:onProperty :minute ; ] ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl:cardinality <span class="hljs-string">"0"</span>^^xsd:nonNegativeInteger ;
|
||
owl:onProperty :month ; ] ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl:cardinality <span class="hljs-string">"0"</span>^^xsd:nonNegativeInteger ;
|
||
owl:onProperty :monthOfYear ; ] ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl:cardinality <span class="hljs-string">"0"</span>^^xsd:nonNegativeInteger ;
|
||
owl:onProperty :timeZone ; ] ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl:cardinality <span class="hljs-string">"0"</span>^^xsd:nonNegativeInteger ;
|
||
owl:onProperty :year ; ] ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl:cardinality <span class="hljs-string">"1"</span>^^xsd:nonNegativeInteger ;
|
||
owl:onProperty :second ; ] ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl:cardinality <span class="hljs-string">"1"</span>^^xsd:nonNegativeInteger ;
|
||
owl:onProperty :week ; ] ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl<span class="hljs-selector-pseudo">:has</span>Value :unitSecond ;
|
||
owl:onProperty :unitType ; ] ;
|
||
rdfs:subClassOf [ a owl:Restriction ;
|
||
owl<span class="hljs-selector-pseudo">:has</span>Value <https://en.wikipedia.org/wiki/Global_Positioning_System#Timekeeping> ;
|
||
owl:onProperty :hasTRS ; ] ;
|
||
.</code></pre>
|
||
</section>
|
||
|
||
<section id="iCal"><div class="header-wrapper"><h3 id="x5-4-icalendar"><bdi class="secno">5.4 </bdi>iCalendar</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#iCal" aria-label="Permalink for Section 5.4"></a></div>
|
||
|
||
<p>iCalendar [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-rfc5545" title="Internet Calendaring and Scheduling Core Object Specification (iCalendar)">rfc5545</a></cite>] is a widely supported standard for personal data interchange. It provides
|
||
the definition of a common format for openly exchanging calendaring and scheduling information across the
|
||
Internet. The representation of temporal concepts in this time ontology can be straightforwardly mapped to
|
||
iCalendar. For example, duration of 15 days, 5 hours and 20 seconds is represented in iCalendar as P15DT5H0M20S,
|
||
which can be represented in the time ontology as:</p>
|
||
<pre aria-busy="false"><code class="hljs css"><span class="hljs-selector-pseudo">:has</span>DurationDescription
|
||
<span class="hljs-selector-tag">a</span> :DurationDescription ;
|
||
:seconds <span class="hljs-number">20</span> ;
|
||
:hours <span class="hljs-number">5</span> ;
|
||
:days <span class="hljs-number">15</span> .</code></pre>
|
||
<p>The <a href="https://icalendar.org/">iCalendar homepage</a> features the example of Abraham Lincoln's birthday as celebrated in 2008.
|
||
This may be represented in multiple ways using OWL-Time, including the following.</p>
|
||
<p>As a <b><code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">:DateTimeInterval</a></code></b> using the <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code> form:</p>
|
||
<pre aria-busy="false"><code class="hljs">_:DTI-1
|
||
rdf:type :DateTimeInterval ;
|
||
dc:coverage """LOCATION:Hodgenville, Kentucky
|
||
GEO:37.5739497;-85.7399606""" ;
|
||
dc:date "2015-04-21T14:14:03.00"^^xsd:dateTimeStamp ;
|
||
dc:description """Born February 12\\, 1809\\nSixteenth President (1861-1865)
|
||
http://AmericanHistoryCalendar.com""" ;
|
||
dc:subject "Civil War People" ;
|
||
dc:subject "U.S. Presidents" ;
|
||
rdfs:label "Abraham Lincoln" ;
|
||
skos:closeMatch <2008-04-28-04-15-56-62-@americanhistorycalendar.com> ;
|
||
:hasDateTimeDescription [
|
||
rdf:type :DateTimeDescription ;
|
||
:day "---12"^^xsd:gDay ;
|
||
:hasTRS <http://www.opengis.net/def/uom/ISO-8601/0/Gregorian> ;
|
||
:month "--02"^^xsd:gMonth ;
|
||
:unitType :unitDay ;
|
||
:year "2008"^^xsd:gYear ;
|
||
] ;
|
||
.</code></pre>
|
||
<p>The boundaries of the interval are implicitly the beginning and end of the day specified in the <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code>.
|
||
|
||
</p><p>As a <b><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code></b> using the <code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">:TimePosition</a></code> to define the beginning and end:</p>
|
||
<pre aria-busy="false"><code class="hljs javascript">_:TE-<span class="hljs-number">2</span>
|
||
<span class="hljs-attr">rdf</span>:type :TemporalEntity ;
|
||
rdfs:label <span class="hljs-string">"Abraham Lincoln"</span> ;
|
||
:hasBeginning [
|
||
rdf:type :Instant ;
|
||
:inTimePosition [
|
||
rdf:type :TimePosition ;
|
||
:hasTRS <http:<span class="hljs-comment">//dbpedia.org/resource/Unix_time> ;</span>
|
||
:numericPosition <span class="hljs-string">"1202752800"</span>^^xsd:decimal ;
|
||
] ;
|
||
] ;
|
||
:hasDuration [
|
||
rdf:type :Duration ;
|
||
:numericDuration <span class="hljs-string">"1"</span>^^xsd:decimal ;
|
||
:unitType :unitDay ;
|
||
] ;
|
||
:hasEnd [
|
||
rdf:type :Instant ;
|
||
:inTimePosition [
|
||
rdf:type :TimePosition ;
|
||
:hasTRS <http:<span class="hljs-comment">//dbpedia.org/resource/Unix_time> ;</span>
|
||
:numericPosition <span class="hljs-string">"1202839200"</span>^^xsd:decimal ;
|
||
] ;
|
||
] ;
|
||
.</code></pre>
|
||
<p>In this formulation, the length of the entity is explicit, as the value of the <code><a href="https://www.w3.org/TR/owl-time/#time:hasDuration">:hasDuration</a></code> property.
|
||
</p><p>Several other formulations are possible, some of which are shown in the RDF representation is available <a href="https://raw.githubusercontent.com/w3c/sdw/gh-pages/time/rdf/abraham-lincoln.ttl">here</a>.
|
||
</p></section>
|
||
|
||
<section id="geologictimescale"><div class="header-wrapper"><h3 id="x5-5-geologic-timescale"><bdi class="secno">5.5 </bdi>Geologic timescale</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#geologictimescale" aria-label="Permalink for Section 5.5"></a></div>
|
||
|
||
<p>The geologic timescale is defined as a set of named intervals arranged in a hierarchy, such that there is
|
||
only one subdivision of the intervals of each rank (e.g. 'Era') by a set of intervals of the next rank (in
|
||
this case 'Period') [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-cr-05" title="A formal model for the geologic time scale and global stratotype section and point, compatible with geospatial information transfer standards. Geosphere 1 119. ">cr-05</a></cite>]. Since the relative ordering is well-defined this graph can
|
||
therefore serve as an ordinal temporal reference system. Fig. 5 shows how the geologic timescale can be
|
||
expressed as a set of <code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code>s related to each other using only <code><a href="https://www.w3.org/TR/owl-time/#time:intervalMetBy">:intervalMetBy</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:intervalStartedBy">:intervalStartedBy</a></code>,
|
||
<code><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishedBy">:intervalFinishedBy</a></code>. Many other interval relationships follow logically from the ones shown (for
|
||
example 'Neogene Period' <code><a href="https://www.w3.org/TR/owl-time/#time:intervalDuring">:intervalDuring</a></code> 'Cenozoic Era') but the ones shown are sufficient to describe
|
||
the full topology. </p>
|
||
<figure id="fig-part-of-the-geologic-timescale-formalized-as-properintervals-with-ordering-relationships-described-using-the-predicates-defined-in-this-ontology"> <img alt="(Part of) the international chronostratigraphic chart, formalized as a set of proper intervals" title="(Part of) the international chronostratigraphic chart, formalized as a set of proper intervals" src="./Time Ontology in OWL_files/GeologicTimescale.png" width="1302" height="1046">
|
||
<figcaption>Figure <bdi class="figno">5</bdi> <span class="fig-title">Part of the geologic timescale formalized as ProperIntervals, with ordering relationships
|
||
described using the predicates defined in this ontology.</span></figcaption> </figure>
|
||
<p> For example, the 'Archean Eon' is a <code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code> described as follows:</p>
|
||
<pre aria-busy="false"><code class="hljs css">geol:Archean
|
||
rdf:type :ProperInterval ;
|
||
<span class="hljs-selector-pseudo">:has</span>Beginning geol:BaseArchean ;
|
||
<span class="hljs-selector-pseudo">:has</span>End geol:BaseProterozoic ;
|
||
:intervalMeets geol:Proterozoic ;
|
||
:intervalMetBy geol:Hadean ;
|
||
rdfs:label <span class="hljs-string">"Archean Eon"</span>^^xsd:string ;
|
||
.</code></pre>
|
||
<p>The beginning of the Archean Eon is an <code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code>, described as follows:</p>
|
||
<pre aria-busy="false"><code class="hljs css">geol:BaseArchean
|
||
rdf:type :Instant ;
|
||
:inTimePosition [
|
||
rdf:type :TimePosition ;
|
||
<span class="hljs-selector-pseudo">:has</span>TRS <http://www.opengis.net/def/crs/OGC/<span class="hljs-number">0</span>/ChronometricGeologicTime> ;
|
||
:numericPosition <span class="hljs-string">"4000"</span>^^xsd:decimal ;
|
||
] ;
|
||
rdfs:label <span class="hljs-string">"Base of Archean Eon"</span>^^xsd:string ;
|
||
.</code></pre>
|
||
<p>Note that the position of this <code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code> is specified using a <code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">:TimePosition</a></code>, which
|
||
is a numeric value relative to the temporal coordinate system indicated as the value of the <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">:hasTRS</a></code> property.
|
||
</p>
|
||
<p>The RDF representation of this example is available <a href="https://raw.githubusercontent.com/w3c/sdw/gh-pages/time/rdf/geologicTimeScale.ttl">here</a>.
|
||
The complete <a href="http://doi.org/10.4225/08/5914ef9e2c6b5">(2016) International Chronostratigraphic Chart</a> encoded using OWL-Time is available. </p>
|
||
</section>
|
||
|
||
<section id="scheduling"><div class="header-wrapper"><h3 id="x5-6-a-use-case-for-scheduling"><bdi class="secno">5.6 </bdi>A Use Case for Scheduling</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#scheduling" aria-label="Permalink for Section 5.6"></a></div>
|
||
|
||
|
||
<p id="examples0">Suppose someone has a telecon scheduled for 6:00pm EST on November 5, 2006. You would like to
|
||
make an appointment with him for 2:00pm PST on the same day, and expect the meeting to last 45 minutes.
|
||
Will there be an overlap? </p>
|
||
<p>In this use case we can specify the facts about the telecon and the meeting using our ontology in OWL that
|
||
will allow a temporal reasoner to determine whether there is a conflict:</p>
|
||
<pre aria-busy="false"><code class="hljs css">ex:telecon
|
||
a :Interval ;
|
||
<span class="hljs-selector-pseudo">:has</span>Beginning ex:teleconStart .
|
||
|
||
ex:meeting
|
||
a :Interval ;
|
||
<span class="hljs-selector-pseudo">:has</span>Beginning ex:meetingStart ;
|
||
<span class="hljs-selector-pseudo">:has</span>DurationDescription ex:meetingDuration .
|
||
|
||
ex:teleconStart
|
||
a :Instant ;
|
||
:inXSDDateTimeStamp <span class="hljs-string">"2006-11-05T18:00:00-5:00"</span>^^xsd:dateTimeStamp .
|
||
|
||
ex:meetingStart
|
||
a :Instant ;
|
||
:inXSDDateTimeStamp <span class="hljs-string">"2006-11-05T14:00:00-8:00"</span>^^xsd:dateTimeStamp .
|
||
|
||
ex:meetingDuration
|
||
a :DurationDescription ;
|
||
:minutes <span class="hljs-number">45</span> .</code></pre>
|
||
<p>The telecon and the meeting are defined as intervals. <code><a href="https://www.w3.org/TR/owl-time/#time:hasBeginning">:hasBeginning</a></code> is used for specifying the
|
||
start times of the meetings. The datetimes are specified using <code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTimeStamp">:inXSDDateTimeStamp</a></code>. The duration of
|
||
the meeting is specified using the <code><a href="https://www.w3.org/TR/owl-time/#time:DurationDescription">:DurationDescription</a></code> class.</p>
|
||
</section>
|
||
|
||
<section id="time-prov"><div class="header-wrapper"><h3 id="x5-7-alignment-of-prov-o-with-owl-time"><bdi class="secno">5.7 </bdi>Alignment of PROV-O with OWL-Time</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#time-prov" aria-label="Permalink for Section 5.7"></a></div>
|
||
|
||
|
||
<p><a href="https://www.w3.org/TR/prov-dm/">PROV</a> is a process-flow model. The base class <a href="https://www.w3.org/TR/prov-o/#Activity">Activity</a> denotes things that occur over a period of time, and act upon or with entities. Activities are ordered within a provenance trace. Thus, an alignment with OWL-Time is natural. </p>
|
||
<p>The PROV-O classes <code><a href="https://www.w3.org/TR/prov-o/#Activity">prov:Activity</a></code> and <code><a href="https://www.w3.org/TR/prov-o/#InstantaneousEvent">prov:InstantaneousEvent</a></code> may be conceived as sub-classes of <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code> respectively.</p>
|
||
|
||
<pre aria-busy="false"><code class="hljs">prov:Activity rdfs:subClassOf time:TemporalEntity .
|
||
prov:InstantaneousEvent rdfs:subClassOf time:Instant .</code></pre>
|
||
|
||
<p>The <code><a href="https://www.w3.org/TR/prov-o/#atTime">prov:atTime</a></code> property of an <code><a href="https://www.w3.org/TR/prov-o/#InstantaneousEvent">prov:InstantaneousEvent</a></code> is directly related to <code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTime">:inXSDDateTime</a></code>.</p>
|
||
|
||
<pre aria-busy="false"><code class="hljs">prov:atTime rdfs:subPropertyOf time:inXSDDateTime .</code></pre>
|
||
|
||
|
||
<p>However, the Activity start and end properties require a property chain axiom, because the beginning and end of a <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code> are <code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instants</a></code> rather than compact <code>xsd:dateTimes</code>.</p>
|
||
|
||
|
||
<pre aria-busy="false"><code class="hljs css">prov:endedAtTime owl:propertyChainAxiom (
|
||
time:hasEnd
|
||
time:inXSDDateTime
|
||
) ;
|
||
.
|
||
prov:startedAtTime owl:propertyChainAxiom (
|
||
time:hasBeginning
|
||
time:inXSDDateTime
|
||
) ;
|
||
.</code></pre>
|
||
|
||
</section>
|
||
|
||
|
||
|
||
</section>
|
||
|
||
|
||
<section id="iana-links" class="normative"><div class="header-wrapper"><h2 id="x6-iana-considerations"><bdi class="secno">6. </bdi>IANA Considerations</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#iana-links" aria-label="Permalink for Section 6."></a></div>
|
||
|
||
|
||
<p>The link relation types below have been registered by IANA per Section 6.2.1 of [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-rfc8288" title="Web Linking">RFC8288</a></cite>]:</p>
|
||
|
||
<section id="link-interval-after"><div class="header-wrapper"><h3 id="x6-1-intervalafter-link-relation-type"><bdi class="secno">6.1 </bdi>intervalAfter Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-after" aria-label="Permalink for Section 6.1"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalAfter</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval that ends before the beginning of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalAfter"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.21</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-before"><div class="header-wrapper"><h3 id="x6-2-intervalbefore-link-relation-type"><bdi class="secno">6.2 </bdi>intervalBefore Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-before" aria-label="Permalink for Section 6.2"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalBefore</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval that begins after the end of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalBefore"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.22</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-contains"><div class="header-wrapper"><h3 id="x6-3-intervalcontains-link-relation-type"><bdi class="secno">6.3 </bdi>intervalContains Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-contains" aria-label="Permalink for Section 6.3"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalContains</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval that begins after the beginning of the time interval associated with the context resource, and ends before the end of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalContains"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.23</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-disjoint"><div class="header-wrapper"><h3 id="x6-4-intervaldisjoint-link-relation-type"><bdi class="secno">6.4 </bdi>intervalDisjoint Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-disjoint" aria-label="Permalink for Section 6.4"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalDisjoint</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval that begins after the end of the time interval associated with the context resource, or ends before the beginning of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalDisjoint"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.24</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-during"><div class="header-wrapper"><h3 id="x6-5-intervalduring-link-relation-type"><bdi class="secno">6.5 </bdi>intervalDuring Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-during" aria-label="Permalink for Section 6.5"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalDuring</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval that begins before the beginning of the time interval associated with the context resource, and ends after the end of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalDuring"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.25</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-equals"><div class="header-wrapper"><h3 id="x6-6-intervalequals-link-relation-type"><bdi class="secno">6.6 </bdi>intervalEquals Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-equals" aria-label="Permalink for Section 6.6"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalEquals</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval whose beginning coincides with the beginning of the time interval associated with the context resource, and whose end coincides with the end of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalEquals"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.26</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-finishedBy"><div class="header-wrapper"><h3 id="x6-7-intervalfinishedby-link-relation-type"><bdi class="secno">6.7 </bdi>intervalFinishedBy Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-finishedBy" aria-label="Permalink for Section 6.7"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalFinishedBy</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval that begins after the beginning of the time interval associated with the context resource, and whose end coincides with the end of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishedBy"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.27</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-finishes"><div class="header-wrapper"><h3 id="x6-8-intervalfinishes-link-relation-type"><bdi class="secno">6.8 </bdi>intervalFinishes Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-finishes" aria-label="Permalink for Section 6.8"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalFinishes</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval that begins before the beginning of the time interval associated with the context resource, and whose end coincides with the end of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishes"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.28</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-in"><div class="header-wrapper"><h3 id="x6-9-intervalin-link-relation-type"><bdi class="secno">6.9 </bdi>intervalIn Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-in" aria-label="Permalink for Section 6.9"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalIn</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval that begins before or is coincident with the beginning of the time interval associated with the context resource, and ends after or is coincident with the end of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalIn"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.29</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-meets"><div class="header-wrapper"><h3 id="x6-10-intervalmeets-link-relation-type"><bdi class="secno">6.10 </bdi>intervalMeets Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-meets" aria-label="Permalink for Section 6.10"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalMeets</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval whose beginning coincides with the end of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalMeets"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.30</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-metBy"><div class="header-wrapper"><h3 id="x6-11-intervalmetby-link-relation-type"><bdi class="secno">6.11 </bdi>intervalMetBy Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-metBy" aria-label="Permalink for Section 6.11"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalMetBy</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval whose end coincides with the beginning of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalMetBy"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.31</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-overlappedBy"><div class="header-wrapper"><h3 id="x6-12-intervaloverlappedby-link-relation-type"><bdi class="secno">6.12 </bdi>intervalOverlappedBy Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-overlappedBy" aria-label="Permalink for Section 6.12"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalOverlappedBy</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval that begins before the beginning of the time interval associated with the context resource, and ends after the beginning of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalOverlappedBy"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.32</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-overlaps"><div class="header-wrapper"><h3 id="x6-13-intervaloverlaps-link-relation-type"><bdi class="secno">6.13 </bdi>intervalOverlaps Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-overlaps" aria-label="Permalink for Section 6.13"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalOverlaps</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval that begins before the end of the time interval associated with the context resource, and ends after the end of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalOverlaps"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.33</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-startedBy"><div class="header-wrapper"><h3 id="x6-14-intervalstartedby-link-relation-type"><bdi class="secno">6.14 </bdi>intervalStartedBy Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-startedBy" aria-label="Permalink for Section 6.14"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalStartedBy</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval whose beginning coincides with the beginning of the time interval associated with the context resource, and ends before the end of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalStartedBy"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.34</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
<section id="link-interval-starts"><div class="header-wrapper"><h3 id="x6-15-intervalstarts-link-relation-type"><bdi class="secno">6.15 </bdi>intervalStarts Link Relation Type</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#link-interval-starts" aria-label="Permalink for Section 6.15"></a></div>
|
||
|
||
<dl>
|
||
<dt>Relation name</dt>
|
||
<dd>intervalStarts</dd>
|
||
<dt>Description</dt>
|
||
<dd>refers to a resource associated with a time interval whose beginning coincides with the beginning of the time interval associated with the context resource, and ends after the end of the time interval associated with the context resource</dd>
|
||
<dt>Reference</dt>
|
||
<dd><a href="https://www.w3.org/TR/owl-time/#time:intervalStarts"><abbr title="World Wide Web Consortium">W3C</abbr> OWL-Time recommendation, section 4.2.35</a></dd>
|
||
</dl>
|
||
</section>
|
||
|
||
</section>
|
||
|
||
<section id="security_and_privacy"><div class="header-wrapper"><h2 id="x7-security-and-privacy"><bdi class="secno">7. </bdi>Security and Privacy</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#security_and_privacy" aria-label="Permalink for Section 7."></a></div>
|
||
|
||
<p>
|
||
OWL-Time supports the representation of temporal entities and relations within applications that require these concepts.
|
||
Implementations that produce, maintain, publish or consume temporal information using OWL-Time must take steps to ensure security and privacy considerations are addressed at the application level.
|
||
</p>
|
||
</section>
|
||
|
||
<hr>
|
||
|
||
<section class="appendix" id="summary"><div class="header-wrapper"><h2 id="a-summary-of-classes-and-properties-in-the-time-ontology"><bdi class="secno">A. </bdi>Summary of Classes and Properties in the Time Ontology</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#summary" aria-label="Permalink for Appendix A."></a></div>
|
||
|
||
|
||
<p>Items in <i>italics</i> were added in the 2017 revision of OWL-Time and are not yet widely used. These may be considered <i>features at risk</i>. </p>
|
||
|
||
<section id="summary-classes"><div class="header-wrapper"><h3 id="a-1-classes-subclass-relations"><bdi class="secno">A.1 </bdi>Classes (subclass relations)</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#summary-classes" aria-label="Permalink for Appendix A.1"></a></div>
|
||
|
||
<ul>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code>
|
||
<ul>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code></li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:Interval">:Interval</a></code>
|
||
<ul>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code>
|
||
<ul>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">:DateTimeInterval</a></code></li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalPosition">:TemporalPosition</a></code>
|
||
<ul>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">:TimePosition</a></code></li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code>
|
||
<ul>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeDescription">:DateTimeDescription</a></code>
|
||
<ul>
|
||
<li><code><i><a href="https://www.w3.org/TR/owl-time/#time:MonthOfYear">:MonthOfYear</a></i></code></li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
</ul>
|
||
</li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalDuration">:TemporalDuration</a></code>
|
||
<ul>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:Duration">:Duration</a></code></li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code>
|
||
<ul>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:DurationDescription">:DurationDescription</a></code></li>
|
||
</ul>
|
||
</li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalUnit">:TemporalUnit</a></code> </li>
|
||
</ul>
|
||
</li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:TRS">:TRS</a></code></li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:TimeZone">:TimeZone</a></code></li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:DayOfWeek">:DayOfWeek</a></code></li>
|
||
</ul>
|
||
</section>
|
||
|
||
<section id="summary-properties"><div class="header-wrapper"><h3 id="a-2-properties-sorted-by-domain-value"><bdi class="secno">A.2 </bdi>Properties (sorted by domain value)</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#summary-properties" aria-label="Permalink for Appendix A.2"></a></div>
|
||
|
||
<table id="table1">
|
||
<tbody>
|
||
<tr>
|
||
<th>Property Name</th>
|
||
<th>Domain</th>
|
||
<th>Range</th>
|
||
</tr>
|
||
<tr>
|
||
<td><code><i><a href="https://www.w3.org/TR/owl-time/#time:hasTime">:hasTime</a></i></code></td>
|
||
<td></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasBeginning">:hasBeginning</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasEnd">:hasEnd</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasTemporalDuration">:hasTemporalDuration</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalDuration">:TemporalDuration</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasDuration">:hasDuration</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Duration">:Duration</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasDurationDescription">:hasDurationDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><i><a href="https://www.w3.org/TR/owl-time/#time:hasXSDDuration">:hasXSDDuration</a></i></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#duration">xsd:duration</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:before">:before</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:after">:after</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:inside">:inside</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Interval">:Interval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalEquals">:intervalEquals</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalDisjoint">:intervalDisjoint</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalAfter">:intervalAfter</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalBefore">:intervalBefore</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalMeets">:intervalMeets</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalMetBy">:intervalMetBy</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalOverlaps">:intervalOverlaps</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalOverlappedBy">:intervalOverlappedBy</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalStarts">:intervalStarts</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalStartedBy">:intervalStartedBy</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishes">:intervalFinishes</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalFinishedBy">:intervalFinishedBy</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalContains">:intervalContains</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalDuring">:intervalDuring</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:intervalIn">:intervalIn</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:ProperInterval">:ProperInterval</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasDateTimeDescription">:hasDateTimeDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">:DateTimeInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:xsdDateTime">:xsdDateTime</a></code> (<i>deprecated</i>)</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">:DateTimeInterval</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTime">xsd:dateTime</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:inTemporalPosition">:inTemporalPosition</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalPosition">:TemporalPosition</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:inTimePosition">:inTimePosition</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">:TimePosition</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:inDateTime">:inDateTime</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDate">:inXSDDate</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#date">xsd:date</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTime">:inXSDDateTime</a></code> (<i>deprecated</i>)</td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTime">xsd:dateTime</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTimeStamp">:inXSDDateTimeStamp</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#dateTimeStamp">xsd:dateTimeStamp</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:inXSDgYearMonth">:inXSDgYearMonth</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#gYearMonth">xsd:gYearMonth</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:inXSDgYear">:inXSDgYear</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Instant">:Instant</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#gYear">xsd:gYear</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:numericDuration">:numericDuration</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Duration">:Duration</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:unitType">:unitType</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:Duration">:Duration</a> or <a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalUnit">:TemporalUnit</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:years">:years</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:months">:months</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:weeks">:weeks</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:days">:days</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hours">:hours</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:minutes">:minutes</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:seconds">:seconds</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:numericPosition">:numericPosition</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">:TimePosition</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:nominalPosition">:nominalPosition</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">:TimePosition</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#string">xsd:string</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:timeZone">:timeZone</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TimeZone">:TimeZone</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:year">:year</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
<td> </td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:month">:month</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
<td> </td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:day">:day</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
<td> </td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hour">:hour</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#nonNegativeInteger">xsd:nonNegativeInteger</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:minute">:minute</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#nonNegativeInteger">xsd:nonNegativeInteger</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:second">:second</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#decimal">xsd:decimal</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:week">:week</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#nonNegativeInteger">xsd:nonNegativeInteger</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:dayOfYear">:dayOfYear</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/xmlschema11-2/#nonNegativeInteger">xsd:nonNegativeInteger</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:dayOfWeek">:dayOfWeek</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:DayOfWeek">:DayOfWeek</a></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><i><a href="https://www.w3.org/TR/owl-time/#time:monthOfYear">:monthOfYear</a></i></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code></td>
|
||
<td><code><i><a href="https://www.w3.org/TR/owl-time/#time:MonthOfYear">:MonthOfYear</a></i></code></td>
|
||
</tr>
|
||
<tr>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">:hasTRS</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalPosition">:TemporalPosition</a> or <a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code></td>
|
||
<td><code><a href="https://www.w3.org/TR/owl-time/#time:TRS">:TRS</a></code></td>
|
||
</tr>
|
||
</tbody>
|
||
</table>
|
||
</section>
|
||
|
||
<section id="summary-datatypes"><div class="header-wrapper"><h3 id="a-3-datatypes"><bdi class="secno">A.3 </bdi>Datatypes</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#summary-datatypes" aria-label="Permalink for Appendix A.3"></a></div>
|
||
|
||
<ul>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:generalDay">:generalDay</a></code></li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:generalMonth">:generalMonth</a></code></li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:generalYear">:generalYear</a></code></li>
|
||
</ul>
|
||
</section>
|
||
|
||
</section>
|
||
|
||
<section class="appendix" id="implementation"><div class="header-wrapper"><h2 id="b-implementation-report"><bdi class="secno">B. </bdi>Implementation report</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#implementation" aria-label="Permalink for Appendix B."></a></div>
|
||
|
||
<p>OWL-Time has been put into use in a large number of applications. Some of these are <a href="https://www.w3.org/2015/spatial/wiki/OWL_Time_Ontology_adoption">summarized here</a>.</p>
|
||
</section>
|
||
|
||
<section class="appendix" id="changes"><div class="header-wrapper"><h2 id="c-changes-from-previous-versions"><bdi class="secno">C. </bdi>Changes from previous versions</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#changes" aria-label="Permalink for Appendix C."></a></div>
|
||
|
||
<p>This version of OWL-Time was developed in the Spatial Data on the Web Working Group
|
||
(a joint activity involving <abbr title="World Wide Web Consortium">W3C</abbr> and the Open Geospatial Consortium).
|
||
The Ontology is derived from the one described in the 2006 Draft [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-owl-time-20060927" title="Time Ontology in OWL">owl-time-20060927</a></cite>] though the document has been completely re-written.
|
||
</p><section id="x2021-update"><div class="header-wrapper"><h3 id="c-1-2021-update"><bdi class="secno">C.1 </bdi>2021 update</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#x2021-update" aria-label="Permalink for Appendix C.1"></a></div>
|
||
<ul>
|
||
<li>clarifications to the textual definitions of <code><a href="https://www.w3.org/TR/owl-time/#time:after">:after</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:before">:before</a></code></li>
|
||
<li>add temporal units <code><a href="https://www.w3.org/TR/owl-time/#time:unitCentury">:unitCentury</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:unitDecade">:unitDecade</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:unitMillenium">:unitMillenium</a></code></li>
|
||
<li>addition of <a href="https://www.w3.org/TR/owl-time/#iana-links">IANA Considerations</a> to support registration of link relations</li>
|
||
</ul>
|
||
</section><section id="x2017-version"><div class="header-wrapper"><h3 id="c-2-2017-version"><bdi class="secno">C.2 </bdi>2017 version</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#x2017-version" aria-label="Permalink for Appendix C.2"></a></div>
|
||
The principal technical changes are as follows: <p></p>
|
||
<ul>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDateTimeDescription">:GeneralDateTimeDescription</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:GeneralDurationDescription">:GeneralDurationDescription</a></code> are generalizations of the corresponding classes from the 2006 draft, for cases which the temporal reference system is not fixed to the Gregorian Calendar in advance</li>
|
||
<li>the property <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">:hasTRS</a></code> enables time values to be associated with a temporal reference system, represented by a new ('stub') class <code><a href="https://www.w3.org/TR/owl-time/#time:TRS">:TRS</a></code></li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">:TimePosition</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:Duration">:Duration</a></code> are new classes to enable position or duration to be described using a number or nominal value </li>
|
||
<li>the (super-)classes <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalPosition">:TemporalPosition</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalDuration">:TemporalDuration</a></code> are introduced as roots of the position and duration class hierarchies</li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:TemporalUnit">:TemporalUnit</a></code> is a subclass of <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalDuration">:TemporalDuration</a></code></li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTimeStamp">:inXSDDateTimeStamp</a></code> added, and <code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTime">:inXSDDateTime</a></code> deprecated</li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:intervalIn">:intervalIn</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:intervalDisjoint">:intervalDisjoint</a></code> relations added</li>
|
||
<li>introduce predicate <code><a href="https://www.w3.org/TR/owl-time/#time:hasTime">:hasTime</a></code> to enable a <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">:TemporalEntity</a></code> to be associated with anything </li>
|
||
<li>deprecate the property <code>:xsdDateTime</code> deprecated as used on <code><a href="https://www.w3.org/TR/owl-time/#time:DateTimeInterval">:DateTimeInterval</a></code> - difficult/ambiguous encoding</li>
|
||
<li><code>:Year</code> deprecated</li>
|
||
<li><code>:January</code> deprecated</li>
|
||
<li><code><a href="https://www.w3.org/TR/owl-time/#time:MonthOfYear">:MonthOfYear</a></code> class and <code><a href="https://www.w3.org/TR/owl-time/#time:monthOfYear">:monthOfYear</a></code> property added. greg:January-greg:December instances added in a separate graph and namespace.</li>
|
||
<li>the time-zone ontology presented in the 2006 draft has been removed. A new class <code><a href="https://www.w3.org/TR/owl-time/#time:TimeZone">:TimeZone</a></code> in the main namespace is used instead. The new class is a 'stub' with no properties, to serve as a superclass for any implementation</li>
|
||
<li>added data-type property <code><a href="https://www.w3.org/TR/owl-time/#time:hasXSDDuration">time:hasXSDDuration</a></code> with domain <code>:TemporalEntity</code> and range <code>xsd:duration</code> </li>
|
||
</ul>
|
||
</section></section>
|
||
|
||
<section class="appendix" id="wide-review"><div class="header-wrapper"><h2 id="d-wide-review"><bdi class="secno">D. </bdi>Wide review</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#wide-review" aria-label="Permalink for Appendix D."></a></div>
|
||
|
||
<p>Results of wide review of OWL-Time is <a href="https://www.w3.org/2015/spatial/wiki/Wide_Review#OWL_Time">summarized here</a>.</p>
|
||
|
||
</section>
|
||
|
||
<section class="appendix" id="requirements"><div class="header-wrapper"><h2 id="e-response-to-requirements-identified-in-working-group-analysis"><bdi class="secno">E. </bdi>Response to Requirements identified in working group analysis</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#requirements" aria-label="Permalink for Appendix E."></a></div>
|
||
|
||
<p>A number of requirements relating to Time were identified in the <a href="https://www.w3.org/TR/sdw-ucr/#arTimeOntologyInOWL">Spatial
|
||
Data on the Web Use Cases & Requirements</a> [<cite><a class="bibref" data-link-type="biblio" href="https://www.w3.org/TR/owl-time/#bib-sdw-ucr" title="Spatial Data on the Web Use Cases & Requirements">sdw-ucr</a></cite>]. This section provides brief descriptions of how these requirements have been resolved. </p>
|
||
<ul>
|
||
<li><a href="https://www.w3.org/TR/sdw-ucr/#DateTimeDuration">5.7 Date, time and duration</a>: see <a href="https://www.w3.org/TR/owl-time/#overview">overview</a>, <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:TemporalEntity</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalPosition">time:TemporalPosition</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalDuration">time:TemporalDuration</a></code></li>
|
||
<li><a href="https://www.w3.org/TR/sdw-ucr/#UpdateDatatypes">5.53 Update datatypes in OWL Time</a>: see <code><a href="https://www.w3.org/TR/owl-time/#time:inXSDDateTimeStamp">time:inXSDDateTimeStamp</a></code> and <a href="https://www.w3.org/TR/owl-time/#Datatypes">Datatypes</a></li>
|
||
<li><a href="https://www.w3.org/TR/sdw-ucr/#DifferentTimeModels">5.9 Different time models</a>: see <a href="https://www.w3.org/TR/owl-time/#trs-clock-calendar">trs-clock-calendar</a>, <code><a href="https://www.w3.org/TR/owl-time/#time:TRS">time:TRS</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">time:hasTRS</a></code></li>
|
||
<li><a href="https://www.w3.org/TR/sdw-ucr/#TemporalReferenceSystem">5.48 Temporal reference system</a>: see <code><a href="https://www.w3.org/TR/owl-time/#trs-clock-calendar">trs-clock-calendar</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:TRS">time:TRS</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:hasTRS">time:hasTRS</a></code></li>
|
||
<li><a href="https://www.w3.org/TR/sdw-ucr/#NominalTemporalReferences">5.28 Nominal temporal references</a>: see <code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">time:TimePosition</a></code>, <code><a href="https://www.w3.org/TR/owl-time/#time:nominalPosition">time:nominalPosition</a></code></li>
|
||
<li><a href="https://www.w3.org/TR/sdw-ucr/#ValidTime">5.56 Valid time</a>: not resolved explicitly. A specialization of <code><a href="https://www.w3.org/TR/owl-time/#time:hasTime">time:hasTime</a></code> can be used</li>
|
||
<li><a href="https://www.w3.org/TR/sdw-ucr/#TemporalVagueness">5.49 Temporal vagueness</a>: not addressed explicitly, but <a href="https://www.w3.org/TR/owl-time/#topology">interval relations</a> single-ended intervals may be used for some cases</li>
|
||
<li><a href="https://www.w3.org/TR/sdw-ucr/#TimeSeries">5.51 Time series</a>: out of scope for OWL-Time which is concerned with the representation of the temporal aspects only. <a href="https://www.w3.org/2015/spatial/wiki/Coverages_in_Linked_Data">Coverages in Linked Data</a> provides some support</li>
|
||
<li><a href="https://www.w3.org/TR/sdw-ucr/#SpaceTimeMultiScale">5.39 Space-time multi-scale</a>: OWL-Time supports the representation of the temporal properties of things, so may be used as a component of an integrated solution, but the latter is out of scope for this document. </li>
|
||
<li><a href="https://www.w3.org/TR/sdw-ucr/#4DModelSpaceTime">5.22 4D model of space-time</a>: OWL-Time supports the representation of time that may be used in 4D applications. In particular the classes <code><a href="https://www.w3.org/TR/owl-time/#time:Duration">time:Duration</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:TimePosition">time:TimePosition</a></code> support descriptions of time duration as a scaled number, and time position as a time coordinate. </li>
|
||
<li><a href="https://www.w3.org/TR/sdw-ucr/#Provenance">5.32 Provenance</a>: individuals from classes in the <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:TemporalEntity</a></code> hierarchy may be used in the description of activities involved in provenance traces. <code><a href="https://www.w3.org/TR/prov-o/#Activity">prov:Activity</a></code> could itself be modelled as an <code>rdfs:subClassOf</code> of <code><a href="https://www.w3.org/TR/owl-time/#time:TemporalEntity">time:TemporalEntity</a></code>. Allen's interval algebra described in <a href="https://www.w3.org/TR/owl-time/#topology">topology</a> can support the description of temporal relationships between activities in a provenance trace. However, these applications have not been explicitly modelled in this document.</li>
|
||
<li><a href="https://www.w3.org/TR/sdw-ucr/#MultilingualSupport">5.25 Multilingual support</a>: all labels and other annotations in the ontology have correct language tags. Individuals from the classes <code><a href="https://www.w3.org/TR/owl-time/#time:DayOfWeek">time:DayOfWeek</a></code> and <code><a href="https://www.w3.org/TR/owl-time/#time:MonthOfYear">time:MonthOfYear</a></code> have labels in several languages in the RDF artefacts. </li>
|
||
</ul>
|
||
|
||
</section>
|
||
|
||
<section id="ack"><div class="header-wrapper"><h2 id="f-acknowledgements"><bdi class="secno">F. </bdi>Acknowledgements</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#ack" aria-label="Permalink for Section F."></a></div>
|
||
|
||
<p>The editors would like to thank the <a href="https://www.w3.org/2000/09/dbwg/details?group=75471">members of the <abbr title="World Wide Web Consortium">W3C</abbr>/OGC Spatial Data on the Web Working Group</a> for their contributions during the development of this document. </p>
|
||
</section>
|
||
|
||
|
||
|
||
<section id="references" class="appendix"><div class="header-wrapper"><h2 id="g-references"><bdi class="secno">G. </bdi>References</h2><a class="self-link" href="https://www.w3.org/TR/owl-time/#references" aria-label="Permalink for Appendix G."></a></div><section id="normative-references"><div class="header-wrapper"><h3 id="g-1-normative-references"><bdi class="secno">G.1 </bdi>Normative references</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#normative-references" aria-label="Permalink for Appendix G.1"></a></div>
|
||
|
||
<dl class="bibliography"><dt id="bib-curie">[curie]</dt><dd>
|
||
<a href="https://www.w3.org/TR/curie/"><cite>CURIE Syntax 1.0</cite></a>. Mark Birbeck; Shane McCarron. W3C. 16 December 2010. W3C Working Group Note. URL: <a href="https://www.w3.org/TR/curie/">https://www.w3.org/TR/curie/</a>
|
||
</dd><dt id="bib-iso8601">[iso8601]</dt><dd>
|
||
<a href="http://www.iso.org/iso/catalogue_detail?csnumber=40874"><cite>Representation of dates and times. ISO 8601:2004.</cite></a>. International Organization for Standardization (ISO). 2004. ISO 8601:2004. URL: <a href="http://www.iso.org/iso/catalogue_detail?csnumber=40874">http://www.iso.org/iso/catalogue_detail?csnumber=40874</a>
|
||
</dd><dt id="bib-owl2-manchester-syntax">[owl2-manchester-syntax]</dt><dd>
|
||
<a href="https://www.w3.org/TR/owl2-manchester-syntax/"><cite>OWL 2 Web Ontology Language Manchester Syntax (Second Edition)</cite></a>. Matthew Horridge; Peter Patel-Schneider. W3C. 11 December 2012. W3C Working Group Note. URL: <a href="https://www.w3.org/TR/owl2-manchester-syntax/">https://www.w3.org/TR/owl2-manchester-syntax/</a>
|
||
</dd><dt id="bib-rfc8288">[RFC8288]</dt><dd>
|
||
<a href="https://httpwg.org/specs/rfc8288.html"><cite>Web Linking</cite></a>. M. Nottingham. IETF. October 2017. Proposed Standard. URL: <a href="https://httpwg.org/specs/rfc8288.html">https://httpwg.org/specs/rfc8288.html</a>
|
||
</dd><dt id="bib-turtle">[turtle]</dt><dd>
|
||
<a href="https://www.w3.org/TR/turtle/"><cite>RDF 1.1 Turtle</cite></a>. Eric Prud'hommeaux; Gavin Carothers. W3C. 25 February 2014. W3C Recommendation. URL: <a href="https://www.w3.org/TR/turtle/">https://www.w3.org/TR/turtle/</a>
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||
</dd><dt id="bib-xmlschema11-2">[xmlschema11-2]</dt><dd>
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||
<a href="https://www.w3.org/TR/xmlschema11-2/"><cite>W3C XML Schema Definition Language (XSD) 1.1 Part 2: Datatypes</cite></a>. David Peterson; Sandy Gao; Ashok Malhotra; Michael Sperberg-McQueen; Henry Thompson; Paul V. Biron et al. W3C. 5 April 2012. W3C Recommendation. URL: <a href="https://www.w3.org/TR/xmlschema11-2/">https://www.w3.org/TR/xmlschema11-2/</a>
|
||
</dd></dl>
|
||
</section><section id="informative-references"><div class="header-wrapper"><h3 id="g-2-informative-references"><bdi class="secno">G.2 </bdi>Informative references</h3><a class="self-link" href="https://www.w3.org/TR/owl-time/#informative-references" aria-label="Permalink for Appendix G.2"></a></div>
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||
|
||
<dl class="bibliography"><dt id="bib-af-97">[af-97]</dt><dd>
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<a href="http://dx.doi.org/10.1007/978-0-585-28322-7_7"><cite>Actions and events in interval temporal logic In: Spatial and Temporal Reasoning. O. Stock, ed., Kluwer, Dordrecht, Netherlands, pp. 205-245.</cite></a>. J.F. Allen; G. Ferguson. 1997. URL: <a href="http://dx.doi.org/10.1007/978-0-585-28322-7_7">http://dx.doi.org/10.1007/978-0-585-28322-7_7</a>
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||
</dd><dt id="bib-al-84">[al-84]</dt><dd>
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<a href="http://dx.doi.org/10.1016/0004-3702%2884%2990008-0"><cite>Towards a general theory of action and time. Artificial Intelligence 23, pp. 123-154.</cite></a>. J.F. Allen. 1984. URL: <a href="http://dx.doi.org/10.1016/0004-3702%2884%2990008-0">http://dx.doi.org/10.1016/0004-3702%2884%2990008-0</a>
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||
</dd><dt id="bib-co-15">[co-15]</dt><dd>
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<a href="http://dx.doi.org/10.3233/SW-150187"><cite>Time Ontology Extended for Non-Gregorian Calendar Applications. Semantic Web Journal 7, pp. 201-209</cite></a>. S.J.D. Cox. 2015. URL: <a href="http://dx.doi.org/10.3233/SW-150187">http://dx.doi.org/10.3233/SW-150187</a>
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||
</dd><dt id="bib-cr-05">[cr-05]</dt><dd>
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<a href="http://dx.doi.org/10.1130/GES00022.1"><cite>A formal model for the geologic time scale and global stratotype section and point, compatible with geospatial information transfer standards. Geosphere 1 119. </cite></a>. S.J.D. Cox; S.M. Richard. 2005. URL: <a href="http://dx.doi.org/10.1130/GES00022.1">http://dx.doi.org/10.1130/GES00022.1</a>
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||
</dd><dt id="bib-cr-14">[cr-14]</dt><dd>
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<a href="http://doi.org/10.1007/s12145-014-0170-6"><cite>A geologic timescale ontology and service. Earth Sci. Informatics.. 8 5–19. </cite></a>. S.J.D. Cox; S.M. Richard. 2014. URL: <a href="http://doi.org/10.1007/s12145-014-0170-6">http://doi.org/10.1007/s12145-014-0170-6</a>
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||
</dd><dt id="bib-hp-04">[hp-04]</dt><dd>
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||
<a href="http://dx.doi.org/10.1145/1017068.1017073"><cite>An Ontology of Time for the Semantic Web. ACM Transactions on Asian Language Processing (TALIP): Special issue on Temporal Information Processing, 3, No. 1, March 2004, pp. 66-85. </cite></a>. J. R. Hobbs; F. Pan. 2004. URL: <a href="http://dx.doi.org/10.1145/1017068.1017073">http://dx.doi.org/10.1145/1017068.1017073</a>
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||
</dd><dt id="bib-iso-19111-2019">[iso-19111-2019]</dt><dd>
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||
<a href="https://www.iso.org/standard/74039.html"><cite>Geographic information -- Referencing by coordinates</cite></a>. ISO/TC 211. ISO. 2019. International Standard. URL: <a href="https://www.iso.org/standard/74039.html">https://www.iso.org/standard/74039.html</a>
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||
</dd><dt id="bib-iso19108">[iso19108]</dt><dd>
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||
<a href="https://www.iso.org/standard/26013.html"><cite>ISO 19108:2002 Geographic information -- Temporal schema. </cite></a>. 2002. URL: <a href="https://www.iso.org/standard/26013.html">https://www.iso.org/standard/26013.html</a>
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||
</dd><dt id="bib-mf-13">[mf-13]</dt><dd>
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<a href="http://dx.doi.org/10.1007/s12145-013-0110-x"><cite>Recent progress on geologic time ontologies and considerations for future works, Earth Sci. Informatics. 6 31–46. </cite></a>. X. Ma; P. Fox. 2013. URL: <a href="http://dx.doi.org/10.1007/s12145-013-0110-x">http://dx.doi.org/10.1007/s12145-013-0110-x</a>
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||
</dd><dt id="bib-ogc-topic-2">[ogc-topic-2]</dt><dd>
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<a href="http://docs.opengeospatial.org/as/18-005r4/18-005r4.html"><cite>OGC Abstract Specification Topic 2 - Geographic information - Referencing by coordinates</cite></a>. Roger Lott. 2019. URL: <a href="http://docs.opengeospatial.org/as/18-005r4/18-005r4.html">http://docs.opengeospatial.org/as/18-005r4/18-005r4.html</a>
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||
</dd><dt id="bib-owl-time-20060927">[owl-time-20060927]</dt><dd>
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||
<a href="https://www.w3.org/TR/2006/WD-owl-time-20060927/"><cite>Time Ontology in OWL</cite></a>. Jerry Hobbs; Feng Pan. W3C. 27 September 2006. W3C Candidate Recommendation. URL: <a href="https://www.w3.org/TR/2006/WD-owl-time-20060927/">https://www.w3.org/TR/2006/WD-owl-time-20060927/</a>
|
||
</dd><dt id="bib-owl2-quick-reference">[owl2-quick-reference]</dt><dd>
|
||
<a href="https://www.w3.org/TR/owl2-quick-reference/"><cite>OWL 2 Web Ontology Language Quick Reference Guide (Second Edition)</cite></a>. Jie Bao; Elisa Kendall; Deborah McGuinness; Peter Patel-Schneider. W3C. 11 December 2012. W3C Recommendation. URL: <a href="https://www.w3.org/TR/owl2-quick-reference/">https://www.w3.org/TR/owl2-quick-reference/</a>
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||
</dd><dt id="bib-owl2-syntax">[owl2-syntax]</dt><dd>
|
||
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||
</dd><dt id="bib-rc-14">[rc-14]</dt><dd>
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|
||
</dd><dt id="bib-rfc5545">[rfc5545]</dt><dd>
|
||
<a href="https://www.rfc-editor.org/rfc/rfc5545"><cite>Internet Calendaring and Scheduling Core Object Specification (iCalendar)</cite></a>. B. Desruisseaux, Ed.. IETF. September 2009. Proposed Standard. URL: <a href="https://www.rfc-editor.org/rfc/rfc5545">https://www.rfc-editor.org/rfc/rfc5545</a>
|
||
</dd><dt id="bib-sdw-ucr">[sdw-ucr]</dt><dd>
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|
||
</dd><dt id="bib-timezone">[timezone]</dt><dd>
|
||
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|
||
</dd><dt id="bib-xpath-functions-31">[xpath-functions-31]</dt><dd>
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|
||
</dd><dt id="bib-xslt20">[xslt20]</dt><dd>
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||
<a href="https://www.w3.org/TR/xslt20/"><cite>XSL Transformations (XSLT) Version 2.0 (Second Edition)</cite></a>. Michael Kay. W3C. 30 March 2021. W3C Recommendation. URL: <a href="https://www.w3.org/TR/xslt20/">https://www.w3.org/TR/xslt20/</a>
|
||
</dd></dl>
|
||
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|
||
hidePanel(panel);
|
||
/** @type {HTMLElement} */
|
||
const dfn = target.closest("dfn, .index-term");
|
||
panel = document.getElementById(`dfn-panel-for-${dfn.id}`);
|
||
const coords = deriveCoordinates(event);
|
||
displayPanel(dfn, panel, coords);
|
||
break;
|
||
}
|
||
case "dock": {
|
||
panel.style.left = null;
|
||
panel.style.top = null;
|
||
panel.classList.add("docked");
|
||
break;
|
||
}
|
||
case "hide": {
|
||
hidePanel(panel);
|
||
panel = null;
|
||
break;
|
||
}
|
||
}
|
||
};
|
||
}
|
||
|
||
/**
|
||
* @param {MouseEvent|KeyboardEvent} event
|
||
*/
|
||
function deriveCoordinates(event) {
|
||
const target = /** @type HTMLElement */ (event.target);
|
||
|
||
// We prevent synthetic AT clicks from putting
|
||
// the dialog in a weird place. The AT events sometimes
|
||
// lack coordinates, so they have clientX/Y = 0
|
||
const rect = target.getBoundingClientRect();
|
||
if (
|
||
event instanceof MouseEvent &&
|
||
event.clientX >= rect.left &&
|
||
event.clientY >= rect.top
|
||
) {
|
||
// The event probably happened inside the bounding rect...
|
||
return { x: event.clientX, y: event.clientY };
|
||
}
|
||
|
||
// Offset to the middle of the element
|
||
const x = rect.x + rect.width / 2;
|
||
// Placed at the bottom of the element
|
||
const y = rect.y + rect.height;
|
||
return { x, y };
|
||
}
|
||
|
||
/**
|
||
* @param {Event} event
|
||
*/
|
||
function deriveAction(event) {
|
||
const target = /** @type {HTMLElement} */ (event.target);
|
||
const hitALink = !!target.closest("a");
|
||
if (target.closest("dfn:not([data-cite]), .index-term")) {
|
||
return hitALink ? "none" : "show";
|
||
}
|
||
if (target.closest(".dfn-panel")) {
|
||
if (hitALink) {
|
||
return target.classList.contains("self-link") ? "hide" : "dock";
|
||
}
|
||
const panel = target.closest(".dfn-panel");
|
||
return panel.classList.contains("docked") ? "hide" : "none";
|
||
}
|
||
if (document.querySelector(".dfn-panel:not([hidden])")) {
|
||
return "hide";
|
||
}
|
||
return "none";
|
||
}
|
||
|
||
/**
|
||
* @param {HTMLElement} dfn
|
||
* @param {HTMLElement} panel
|
||
* @param {{ x: number, y: number }} clickPosition
|
||
*/
|
||
function displayPanel(dfn, panel, { x, y }) {
|
||
panel.hidden = false;
|
||
// distance (px) between edge of panel and the pointing triangle (caret)
|
||
const MARGIN = 20;
|
||
|
||
const dfnRects = dfn.getClientRects();
|
||
// Find the `top` offset when the `dfn` can be spread across multiple lines
|
||
let closestTop = 0;
|
||
let minDiff = Infinity;
|
||
for (const rect of dfnRects) {
|
||
const { top, bottom } = rect;
|
||
const diffFromClickY = Math.abs((top + bottom) / 2 - y);
|
||
if (diffFromClickY < minDiff) {
|
||
minDiff = diffFromClickY;
|
||
closestTop = top;
|
||
}
|
||
}
|
||
|
||
const top = window.scrollY + closestTop + dfnRects[0].height;
|
||
const left = x - MARGIN;
|
||
panel.style.left = `${left}px`;
|
||
panel.style.top = `${top}px`;
|
||
|
||
// Find if the panel is flowing out of the window
|
||
const panelRect = panel.getBoundingClientRect();
|
||
const SCREEN_WIDTH = Math.min(window.innerWidth, window.screen.width);
|
||
if (panelRect.right > SCREEN_WIDTH) {
|
||
const newLeft = Math.max(MARGIN, x + MARGIN - panelRect.width);
|
||
const newCaretOffset = left - newLeft;
|
||
panel.style.left = `${newLeft}px`;
|
||
/** @type {HTMLElement} */
|
||
const caret = panel.querySelector(".caret");
|
||
caret.style.left = `${newCaretOffset}px`;
|
||
}
|
||
|
||
// As it's a dialog, we trap focus.
|
||
// TODO: when <dialog> becomes a implemented, we should really
|
||
// use that.
|
||
trapFocus(panel, dfn);
|
||
}
|
||
|
||
/**
|
||
* @param {HTMLElement} panel
|
||
* @param {HTMLElement} dfn
|
||
* @returns
|
||
*/
|
||
function trapFocus(panel, dfn) {
|
||
/** @type NodeListOf<HTMLAnchorElement> elements */
|
||
const anchors = panel.querySelectorAll("a[href]");
|
||
// No need to trap focus
|
||
if (!anchors.length) return;
|
||
|
||
// Move focus to first anchor element
|
||
const first = anchors.item(0);
|
||
first.focus();
|
||
|
||
const trapListener = createTrapListener(anchors, panel, dfn);
|
||
panel.addEventListener("keydown", trapListener);
|
||
|
||
// Hiding the panel releases the trap
|
||
const mo = new MutationObserver(records => {
|
||
const [record] = records;
|
||
const target = /** @type HTMLElement */ (record.target);
|
||
if (target.hidden) {
|
||
panel.removeEventListener("keydown", trapListener);
|
||
mo.disconnect();
|
||
}
|
||
});
|
||
mo.observe(panel, { attributes: true, attributeFilter: ["hidden"] });
|
||
}
|
||
|
||
/**
|
||
*
|
||
* @param {NodeListOf<HTMLAnchorElement>} anchors
|
||
* @param {HTMLElement} panel
|
||
* @param {HTMLElement} dfn
|
||
* @returns
|
||
*/
|
||
function createTrapListener(anchors, panel, dfn) {
|
||
const lastIndex = anchors.length - 1;
|
||
let currentIndex = 0;
|
||
return event => {
|
||
switch (event.key) {
|
||
// Hitting "Tab" traps us in a nice loop around elements.
|
||
case "Tab": {
|
||
event.preventDefault();
|
||
currentIndex += event.shiftKey ? -1 : +1;
|
||
if (currentIndex < 0) {
|
||
currentIndex = lastIndex;
|
||
} else if (currentIndex > lastIndex) {
|
||
currentIndex = 0;
|
||
}
|
||
anchors.item(currentIndex).focus();
|
||
break;
|
||
}
|
||
|
||
// Hitting "Enter" on an anchor releases the trap.
|
||
case "Enter":
|
||
hidePanel(panel);
|
||
break;
|
||
|
||
// Hitting "Escape" returns focus to dfn.
|
||
case "Escape":
|
||
hidePanel(panel);
|
||
dfn.focus();
|
||
return;
|
||
}
|
||
};
|
||
}
|
||
|
||
/** @param {HTMLElement} panel */
|
||
function hidePanel(panel) {
|
||
if (!panel) return;
|
||
panel.hidden = true;
|
||
panel.classList.remove("docked");
|
||
}
|
||
})()</script><script src="./Time Ontology in OWL_files/fixup.js.download"></script>
|
||
</body></html> |