Getting the duration between a time of a day and midnight at the end of same day

UntilMidnight.java

import net.time4j.*;
import net.time4j.format.expert.*;

public class UntilMidnight {
  public static void main(String... args) throws ParseException {
    PlainTime t = Iso8601Format.EXTENDED_WALL_TIME.parse("12:03:00");
    Duration<ClockUnit> duration =
      Duration.inClockUnits().between(t, PlainTime.midnightAtEndOfDay()); // until 24:00
    Duration.Formatter<ClockUnit> f = Duration.formatter(ClockUnit.class, "hh:mm:ss");
    System.out.println(f.format(duration)); // 11:57:00
  }
}