import java.time.temporal.*;

​

public class prog {

    public static void main(String[] args){

        LocalTime present = LocalTime.now();

        System.out.println("현재 시간은 " + present.get(ChronoField.HOUR_OF_DAY) + "시입니다.");

        LocalTime otherTime = present.plus(2, ChronoUnit.HOURS);

        System.out.println("바뀐 시간은 " + otherTime.getHour() + "시입니다.");

        LocalTime anotherTime = present.minus(6, ChronoUnit.HOURS);

        System.out.println("바뀐 시간은 " + anotherTime.getHour() + "시입니다.");

    }

}