Returns true if and only if the starting instant of $arg1 is
less than the starting instant of $arg2. Returns false
otherwise.
xs:date values. Also used in the
definition of the "ge" operator.op:date-less-than( $arg1 as xs:date,$arg2 as xs:datexs:booleanThe starting instant of an xs:date is the xs:dateTime at time
00:00:00 on that date.
The function returns the result of the expression:
op:dateTime-less-than(xs:dateTime($arg1), xs:dateTime($arg2))
The expression op:date-less-than(xs:date("2004-12-25Z"),
xs:date("2004-12-25-05:00")) returns true().
The expression op:date-less-than(xs:date("2004-12-25-12:00"),
xs:date("2004-12-26+12:00")) returns false().