Returns the minute component of an xs:dateTime.
fn:minutes-from-dateTime( $arg as xs:dateTime?xs:integer?If $arg is the empty sequence, the function returns the empty sequence.
Otherwise, the function returns an xs:integer value between 0 and 59, both
inclusive, representing the minute component in the local value of
$arg.
The expression fn:minutes-from-dateTime(xs:dateTime("1999-05-31T13:20:00-05:00")) returns 20.
The expression fn:minutes-from-dateTime(xs:dateTime("1999-05-31T13:30:00+05:30")) returns 30.