[Bug 6939] New: "time" value comparison

http://www.w3.org/Bugs/Public/show_bug.cgi?id=6939

           Summary: "time" value comparison
           Product: XML Schema
           Version: 1.1 only
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Datatypes: XSD Part 2
        AssignedTo: David_E3@VERIFONE.com
        ReportedBy: sandygao@ca.ibm.com
         QAContact: www-xml-schema-comments@w3.org
                CC: cmsmcq@blackmesatech.com


In "3.3.9 time":

"Note: The relative order of two time values, one of which has a
·timezoneOffset· of absent is determined by imputing time zone offsets of both
+14:00 and −14:00 to the value without an offset. Many such combinations
will be ·incomparable· because the two imputed time zone offsets yield
different orders.  However, for a given untimezoned value, there will always be
timezoned values at one or both ends of the 52-hour interval that are
·comparable· (because the interval of ·incomparability· is only 24 hours
wide)."

Consider the untimezoned time value "12:00:00". What timezoned value(s) can be
comparable? It's not clear how the 52-hour interval is relevant (it's for a
calendar day, not a time value) and why the incomparable range is 24 hours wide
(I would think 28).


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Received on Thursday, 21 May 2009 18:23:16 UTC