code: def get_windows_tz(iana_tz):
      
      timezone = IANA_TO_WIN.get(
          iana_tz.zone if isinstance(iana_tz, tzinfo) else iana_tz)
      if timezone is None:
          raise pytz.UnknownTimeZoneError(
              "Can't find Iana TimeZone " + iana_tz.zone)
  
      return timezone
docs: Returns a valid windows TimeZone from a given pytz TimeZone
      (Iana/Olson Timezones)
      Note: Windows Timezones are SHIT!... no ... really THEY ARE
      HOLY FUCKING SHIT!.