xs:time
The xs:time type represents a specific time of day on no
particular day, such as 3:32 P.M. Times are written in the form
hh:mm:ss.xxx using a 24-hour clock and
as many fractions of a second as necessary. For example, 3:41 P.M.
is written as 15:41:00. 3:41
A.M. and 0.5 seconds is written as 03:41:00.5. The Z suffix indicates Coordinated Universal
Time (Greenwich Mean Time, UTC). Otherwise, the time zone can be
indicated as an offset in hours and minutes from UTC. For example,
15:41:00-05:00 is 3:41 P.M., in
the U.S. Eastern time zone. The time zone may be omitted, in which
case the actual time is somewhat nondeterministic. These are all
valid values of type xs:time:
03:32:00-05:00
00:00:00Z
08:30:34.121893632178
23:59:59
Constraining facets that apply to xs:time are minInclusive, maxInclusive, minExclusive, maxExclusive, pattern, enumeration, and whiteSpace. Note, however, that when the
time zone is not specified, it's not always possible to determine
unambiguously whether one time falls after another.