2135 2005-09-12 15:10:37 +0000 R-144: Adding durations to dateTime 2007-03-29 18:48:57 +0000 1 1 1 Unclassified XML Schema Datatypes: XSD Part 2 1.0 only All All ASSIGNED needsDrafting P2 normal --- 1 sandygao cmsmcq www-xml-schema-comments oldest_to_newest 6079 0 sandygao 2005-09-12 15:10:37 +0000 Section E.1 contains the sentence: "If a field in S is not specified, it is treated in the calculation as if it were the minimum allowed value in that field, however, after the calculation is concluded, the corresponding field in E is removed (set to unspecified)." I think this sentence is in error and should be deleted. The ordering relation for eg gYear specifies: "the order relation on gYear values is the order relation on their starting instants". In this case as in others, we only need to compare fully-specified dateTime instants. The value space of gYear must be considered as containing both the year number and the time zone (if any). To compare two values in the gYear value space, you convert them to values in the dateTime value space (by using their starting instants). Then you compare those two dateTime values using the algorithm in 3.2.7.3. That sentence in section E.1 only makes sense if you take the view that the value space of the partially specified dateTimes (like gYear, gMonth) does *not* include time zones; in this case, you would need to normalize out the time-zone before converting to a time-instant for comparison, and so would be applying addition to a partially-specified date time. But this leads to nonsense results, as Kawaguchi-san pointed out: http://lists.w3.org/Archives/Public/www-xml-schema-comments/2001JanMar/0065.html See: http://lists.w3.org/Archives/Public/www-xml-schema-comments/2002AprJun/0046.html 6080 1 sandygao 2005-09-12 15:10:44 +0000 Resolved at the July 2003 f2f to classify as an error w/erratum.