# op:gDay-equal - XPath XQuery Reference

Returns true if the two xs:gDay values have the same starting instant, when
            considered as days in the same month of the same year.Defines the semantics
         of the "eq" operator when applied to two xs:gDay values. Also used in the
         definition of the "ne" operator.deterministiccontext-dependentfocus-independentThe starting instants of $arg1 and $arg2 are calculated by
            supplying the missing components of $arg1 and $arg2 from the
               xs:dateTime template 1972-12-xxT00:00:00 or an equivalent.
            The function returns the result of comparing these two starting instants using
               op:dateTime-equal.Assume that the dynamic context provides an implicit timezone value of
                  -05:00. Assume, also, that the xs:dateTime template is
                  1972-12-xxT00:00:00. op:gDay-equal(xs:gDay("---25-14:00"),
                  xs:gDay("---25+10:00"))false() The starting instants are 1972-12-25T00:00:00-14:00 and
                     1972-12-25T00:00:00+10:00, respectively, and normalize to
                     1972-12-25T14:00:00Z and 1972-12-24T14:00:00Z.
               op:gDay-equal(xs:gDay("---12"), xs:gDay("---12Z"))false()