- From: Ivan Herman <ivan@w3.org>
- Date: Thu, 10 Nov 2011 14:11:55 +0100
- To: Shane McCarron <shane@aptest.com>
- Cc: public-rdfa-wg@w3.org
On Nov 10, 2011, at 14:03 , Shane McCarron wrote: > I see that you suggest using 'zero hour' when there is no time component. As long as we use GMT for the timezone I think that is okay. However, note that some timezones on some days HAVE NO zero hour. When adjusting for daylight savings time, for example, Cairo goes from 23:59:59 to 01:00:00. As you say - nothing with dates and times is easy. > Indeed...:-) Ivan > On 11/10/2011 6:50 AM, Ivan Herman wrote: >> Now that<time> seems to be back into the picture, I have looked at ISSUE-97 again[1]. >> >> The issue, as raised by Stéphane, proposes to understand the '@datetime' property of the<time> element. Essentially, if the source contains this: >> >> <time property="something" datetime="2009-05-10">May 10th 2009</time> >> >> we should, implicitly, consider this as being >> >> <time property="something" datetime="2009-05-10" content="2009-05-10">May 10th 2009</time> >> >> and then let the core RDFa processing go. That is of course easy. >> >> However... do we want to add a datatype to this? One would think so, but then we get to a very slippery slope. Which datatype? Looking at >> >> http://www.w3.org/TR/xmlschema-2/#date >> >> we do have quite a lot of possibilities... There is of course xsd:dateTime (this is what Stéphane used in his original mail for the issue). This would mean the transformation of the<time> element into: >> >> <time property="something" datetime="2009-05-10" content="2009-05-10T00:00:00-00:00" datatype="xsd:dateTime">May 10th 2009</time> >> >> but there are a bunch of others, like gYear, gYearMonth, etc. >> >> Personally, I would propose to use xsd:dateTime only. But that has to be decided by the group. >> >> However, nothing with time is simple... If the author puts in the whole ISO format, then are of course fine. But I would expect that in the vast majority of cases the hour and minute and the others will all be missing. Is it all right to just add the 0 hour, as Stéphane did it? Again, I can live with that, but this is something to be decided and known for interoperability reasons... >> >> Minor things, but should be cast in stone:-) >> >> Ivan >> >> >> >> [1] http://www.w3.org/2010/02/rdfa/track/issues/97 >> >> ---- >> Ivan Herman, W3C Semantic Web Activity Lead >> Home: http://www.w3.org/People/Ivan/ >> mobile: +31-641044153 >> FOAF: http://www.ivan-herman.net/foaf.rdf >> >> >> >> >> >> > > -- > Shane McCarron > Managing Director, Applied Testing and Technology, Inc. > +1 763 786 8160 x120 > > ---- Ivan Herman, W3C Semantic Web Activity Lead Home: http://www.w3.org/People/Ivan/ mobile: +31-641044153 FOAF: http://www.ivan-herman.net/foaf.rdf
Received on Thursday, 10 November 2011 13:09:27 UTC