code: def _domain_event_rtc_change_cb(conn, domain, utcoffset, opaque):
      '''
      Domain RTC change events handler
      '''
      _salt_send_domain_event(opaque, conn, domain, opaque['event'], {
          'utcoffset': utcoffset
      }f _domain_event_rtc_change_cb(conn, domain, utcoffset, opaque):
      '''
      Domain RTC change events handler
      '''
      _salt_send_domain_event(opaque, conn, domain, opaque['event'], {
          'utcoffset': utcoffset
      })
docs: Domain RTC change events handler