periods.py 文件源码

def _get_day_range(self, date):

        # localize the date before we typecast to naive dates
        if self.tzinfo is not None and timezone.is_aware(date):
            date = date.astimezone(self.tzinfo)

        if isinstance(date, datetime.datetime):
            date = date.date()

        naive_start = datetime.datetime.combine(date, datetime.time.min)
        naive_end = datetime.datetime.combine(date + datetime.timedelta(days=1), datetime.time.min)
        if self.tzinfo is not None:
            local_start = self.tzinfo.localize(naive_start)
            local_end = self.tzinfo.localize(naive_end)
            start = local_start.astimezone(pytz.utc)
            end = local_end.astimezone(pytz.utc)
        else:
            start = naive_start
            end = naive_end

        return start, end