Returns the current time.
fn:current-time( xs:timeReturns xs:time(fn:current-dateTime()). This is an xs:time
(with timezone) that is current at some time during the evaluation of a query or
transformation in which fn:current-time is executed.
This function is . The precise instant during the query
or transformation represented by the value of fn:current-time() is implementation-dependent.
fn:current-time() returns an xs:time corresponding to the
current time. For example, a call of fn:current-time() might return
23:17:00.000-05:00.
The returned time will always have an associated timezone, which will always be the same as the implicit timezone in the dynamic context