# fn:year-from-date - XPath XQuery Reference

Returns the year component of an xs:date.deterministiccontext-independentfocus-independentIf $arg is the empty sequence, the function returns the empty sequence.Otherwise, the function returns an xs:integer representing the year in the
            local value of $arg. The value may be negative. fn:year-from-date(xs:date("1999-05-31"))1999fn:year-from-date(xs:date("2000-01-01+05:00"))2000fn:year-from-date(xs:date("-0002-06-01"))-2The result is the same whether XSD 1.0 or 1.1 is in use, despite
               the absence of a year 0 in the XSD 1.0 value space.The year returned is the same numeric value that appears in the lexical
            representation, which for negative years means the meaning may vary depending on whether
            XSD 1.0 or XSD 1.1 conventions are in use.