code: public static EthiopianTime ofNight(
          int hour,
          int minute,
          int second
      ) {
  
          return EthiopianTime.of(true, hour, minute, second);
  
      }
docs: /*[deutsch]
  <p>Erzeugt eine neue Instanz im ISO-Bereich (18:00:00-05:59:59 um Mitternacht herum). </p>
  
  @param   hour    ethiopian hour in range 1-12 during night
  @param   minute  minute of hour
  @param   second  second of hour
  @return  ethiopian time
  @see     #ofDay(int, int, int)
  @since   3.11/4.8