Returns the current date.
fn:current-date( xs:dateReturns xs:date(fn:current-dateTime()). This is an xs:date
(with timezone) that is current at some time during the evaluation of a query or
transformation in which fn:current-date is executed.
This function is . The precise instant during the query
or transformation represented by the value of fn:current-date is implementation-dependent.
fn:current-date() returns an xs:date corresponding to the
current date. For example, a call of fn:current-date() might return
2004-05-12+01:00.
The returned date will always have an associated timezone, which will always be the same as the implicit timezone in the dynamic context