code: public MomentInterval inTimezone(TZID tzid) {
  
          return this.in(Timezone.of(tzid).with(GapResolver.NEXT_VALID_TIME.and(OverlapResolver.EARLIER_OFFSET)));
  
      }
docs: /*[deutsch]
  <p>Kombiniert dieses lokale Zeitstempelintervall mit der angegebenen
  Zeitzone zu einem globalen UTC-Intervall. </p>
  
  @param   tzid        timezone id
  @return  global timestamp interval interpreted in given timezone
  @throws  IllegalArgumentException if given timezone cannot be loaded
  @since   2.0
  @see     Timezone#of(TZID)
  @see     #inStdTimezone()
  @see     GapResolver#NEXT_VALID_TIME
  @see     OverlapResolver#EARLIER_OFFSET