def Z(self):
        if not self.timezone:
            return ""

        try:
            offset = self.timezone.utcoffset(self.data)
        except Exception:
            # pytz raises AmbiguousTimeError during the autumn DST change.
            # This happens mainly when __init__ receives a naive datetime
            # and sets self.timezone = get_default_timezone().
            return ""

        # `offset` is a datetime.timedelta. For negative values (to the west of
        # UTC) only days can be negative (days=-1) and seconds are always
        # positive. e.g. UTC-1 -> timedelta(days=-1, seconds=82800, microseconds=0)
        # Positive offsets have days=0
        return offset.days * 86400 + offset.seconds
Time zone offset in seconds (i.e. '-43200' to '43200'). The offset for
dataset/ETHPy150Open django/django/django/utils/dateformat.py/TimeFormat.Z