fn.monthFromDate( $arg as Date? ) as Number?
Returns an xs:integer between 1 and 12, both inclusive, representing the month component in the localized value of $arg.
If $arg is the empty sequence, returns the empty sequence.
|$arg||The date whose month component will be returned.|
fn.monthFromDate(xs.date("1999-05-31-05:00")) => 5
fn.monthFromDate(xs.date("2000-01-01+05:00")) => 12