code: def scheduled_special_times(calendar, start, end, time, tz):
      
      days = calendar.holidays(start, end)
      return pd.Series(
          index=pd.DatetimeIndex(days, tz=UTC),
          data=days_at_time(days, time, tz=tz),
      )
docs: Returns a Series mapping each holiday (as a UTC midnight Timestamp)
      in ``calendar`` between ``start`` and ``end`` to that session at
      ``time`` (as a UTC Timestamp).