Method dst

Lib/test/datetimetester.py:6718–6724

(self, dt)

        return self._find_ti(dt, 0)

    def dst(self, dt):
        isdst = self._find_ti(dt, 1)
        # XXX: We cannot accurately determine the "save" value,
        # so let's return 1h whenever DST is in effect.  Since
        # we don't use dst() in fromutc(), it is unlikely that
        # it will be needed for anything more than bool(dst()).
        return ZERO if isdst else HOUR

    def tzname(self, dt):
        return self._find_ti(dt, 2)