code: def Z(self):
      
      if not self.timezone:
        return 0
      offset = self.timezone.utcoffset(self.data)
      # Only days can be negative, so negative offsets have days=-1 and
      # seconds positive. Positive offsets have days=0
      return offset.days * 86400 + offset.seconds
docs: Time zone offset in seconds (i.e. '-43200' to '43200'). The offset for
      timezones west of UTC is always negative, and for those east of UTC is
      always positive.