Led light shock the clock makes a lot without any damage the shock provides protection from shock and vibration world time the world time shows the time in up to 29 different time zones stop function 1 100 1 hr elapsed time intermediate time and end time with an accuracy of hundredths of seconds the measurement of the clock goes up to an hour timer 1 1 min 24 hours the countdown timer helps remind you of special or recurring events by giving time t