... groups of the specified date buzzers The whole point timekeeping function of Stopwatch function, 99 groups stopwatch records check, the largest time-23 ... hours 59 minutes 59 seconds to stop Countdown function, the biggest countdown 99:59:59 Compass, altimeter, barameter, ... 24 hour World Time functions, can show 28 cities in function of time and daylight saving time LCD Contrast can be ...