Invalid string format for until()

Raise code

                    "%Y-%m-%d %H:%M",
                    "%Y-%m-%d",
                    "%H:%M:%S",
                    "%H:%M",
                ],
            )
            if cancel_after is None:
                raise ScheduleValueError("Invalid string format for until()")
            if "-" not in until_time:
                # the until_time is a time-only format. Set the date to today
                now = datetime.datetime.now()
                cancel_after = cancel_after.replace(
                    year=now.year, month=now.month, day=now.day
                )
            self.cancel_after = cancel_after