[Bug 6044] Revise equality of dateTime values without timezone

http://www.w3.org/Bugs/Public/show_bug.cgi?id=6044


Peter F. Patel-Schneider <pfps@research.bell-labs.com> changed:

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--- Comment #2 from Peter F. Patel-Schneider <pfps@research.bell-labs.com>  2008-09-24 20:17:45 ---
OWL will probably proceed by suggesting that tools that see dateTime values
without timezones "repair" the values by inserting some notion of the "current"
timezone.  I suppose that this is enough of a hack that it could fall outside
the purview of the XML Schema WG.

For example, the behaviour could be something like
RDF document 1:
ex:event ex:start-time "2007-09-10T15:00:00"^^xsd:dateTime 
RDF document 2:
ex:event ex:end-time "2007-09-10T15:00:00"^^xsd:dateTime
But an OWL processor could end up determining that the duration of ex:event was
one hour (perhaps because the first document was produced by someone in the EDT
timezone and the second by someone in the CDT timezone).

The totality of the behaviour appears to violate the semantics of xsd:dateTime,
and it would be nice to have some cover, perhaps only informative.


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Received on Wednesday, 24 September 2008 20:18:19 UTC