Wait for X minutes and seconds then it stops.

waitingTime.java

 int minute = 0, seconds = 30, waitingTime = 2;

        Calendar currTime = Calendar.getInstance();
        Calendar timeSleep = (Calendar) currTime.clone();
        timeSleep.add(Calendar.MINUTE, minute);
        timeSleep.add(Calendar.SECOND, seconds);

        System.out.println(String.format("Now is %s:%s and I will wait until %s:%s", currTime.get(Calendar.MINUTE), currTime.get(Calendar.SECOND), 
               timeSleep.get(Calendar.MINUTE), timeSleep.get(Calendar.SECOND)));
        
        while (currTime.before(timeSleep)) {
            System.out.println(String.format("%s:%s", currTime.get(Calendar.MINUTE), currTime.get(Calendar.SECOND)));

            Thread.sleep(waitingTime * 1000);
            currTime.add(Calendar.SECOND, waitingTime);
        }

        System.out.println("Done!");