ISSUE-169: Section 7, DateTime Description
Section 7, DateTime Description
- State:
- CLOSED
- Product:
- Time ontology in OWL
- Raised by:
- Simon Cox
- Opened on:
- 2017-04-12
- Description:
- From https://www.w3.org/XML/2007/qts-timeont-comments#id64197
Limits on the values of the DateTimeDescription properties should be specified (e.g. seconds between 0 inclusive and 60 [or 61] exclusive).
XML Schema defines “2007-03-21T24:00:00-04:00” and “20070-03-22T00:00:00-04:00” as two representations of the same time. Is “24:00” hours allowed in a DateTimeDescription? What does it mean? - Related Actions Items:
- No related actions
- Related emails:
- RE: OWL-Time - ISSUE-169: Section 7, DateTime Description (from chris.little@metoffice.gov.uk on 2017-04-13)
- OWL-Time - ISSUE-169: Section 7, DateTime Description (from Simon.Cox@csiro.au on 2017-04-12)
Related notes:
Proposed disposition from email 2017-04-12
The valid values for the fields – including bounds - in a compact DateTime, and also gDay, gMonth and gYear are specified through a lexical pattern in the XML Schema specification – see
https://www.w3.org/TR/xmlschema11-2/#nt-dateTimeRep
https://www.w3.org/TR/xmlschema11-2/#nt-gDayRep
https://www.w3.org/TR/xmlschema11-2/#nt-gMonthRep
https://www.w3.org/TR/xmlschema11-2/#nt-gYearRep
xsd:dateTime and xsd:dateTimeStamp are built in to OWL2, and most OWL processors enforce this directly.
No need to say anything in the OWL-Time document (though added hyperlinks to the relevant position in the XSD Datatypes spec).
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