2116 2005-09-09 15:17:57 +0000 R-127: Distinction between 00:00:00 and 24:00:00 for time datatype? 2007-03-29 18:48:52 +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 6040 0 sandygao 2005-09-09 15:17:57 +0000 According to section 3.2.8 of "XML Schema: Datatypes" [1]: "The order relation on time values is the Order relation on dateTime (3.2.7.3) using an arbitrary date." Thus, if one considers the ordering of the values 00:00:00 and 24:00:00, using the arbitrary date 2002-03-06, the ordering is the same as that for 2002-03- 06T00:00:00 and 2002-03-06T24:00:00. The latter value is the same as 2002-03- 07T00:00:00. So, according to the definition of the order relation cited above, 00:00:00 < 24:00:00. However, according to the definition of the canonical representation of time in section 3.2.8.2 [2] "the canonical representation for midnight is 00:00:00" The definition of the canonical representation would seem to imply that 00:00:00 and 24:00:00 are considered to be the same time value. It appears that one of these 2 sections is incorrect. [1] http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/#time [2] http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/#time-canonical-repr See: http://lists.w3.org/Archives/Public/www-xml-schema-comments/2002JanMar/0870.html 6041 1 sandygao 2005-09-09 15:18:22 +0000 Resolved at the 2003-07-31 telecon to classify R-127 as a clarification with erratum, and to suggest to the editors that they add a couple of examples.