- From: Andy Seaborne <andy.seaborne@epimorphics.com>
- Date: Fri, 13 May 2011 18:40:24 +0100
- To: public-rdf-wg@w3.org
On 13/05/11 16:00, Richard Cyganiak wrote: > Objection 2: time and dateTime would become always UTC > > I'm not sure what to respond here. They wouldn't necessarily. It's not that simple :-) "2011-05-13T18:07:50"^^xsd:dateTime with no timezone is not in UTC - there's no default. There are two related timelines that form the value space - one for timezoned datetimes and one for un-timezoned ones. If you compare a timezoned with a non-timezoned dateTime you may get "Indeterminate" back if the dateTime, modified by timezone is with 14 hours of the time of the untimezoned one. The "Dynamic Context", a feature of XQuery/XPath, not of XSD datatype per se, has an implicit timezone - it's set to whatever the implementation chooses. http://www.w3.org/TR/xpath20/#id-xp-evaluation-context-components That it OK for processing XML but I think that for RDF, data authored in one timezone, stored in another, downloaded by something in a third is quite possible. Andy
Received on Friday, 13 May 2011 17:40:56 UTC