periods.py 文件源码

def _normalize_timezone_to_utc(self, point_in_time, tzinfo):
        if point_in_time.tzinfo is not None:
            return point_in_time.astimezone(pytz.utc)
        if tzinfo is not None:
            return tzinfo.localize(point_in_time).astimezone(pytz.utc)
        if settings.USE_TZ:
            return pytz.utc.localize(point_in_time)
        else:
            if timezone.is_aware(point_in_time):
                return timezone.make_naive(point_in_time, pytz.utc)
            else:
                return point_in_time