Multi-Band Atomic Timekeeping (US, UK, Germany, Japan, China) Receives time calibration radio signals which keep the displayed time accurate Auto receive function (up to 6 times per day) Manual receive functionSignal: US WWVB, UK MSF, Germany DCF77, Japan JJY40/JJY60, China BPCFrequency: US 60kHz, UK 60kHz, Germany 77.5kHz, Japan 40/60kHz, BPC 68.5kHz Tough Solar Power 100M Water Resistant LED Light with AfterglowNeo-brite luminous hands & markers World Time29 times zones (29 cities + UTC), city code display, daylight saving on/off 5 languages Day of Week display (Chinese, English, German, Japanese, Spanish) 5 Daily Alarms Hourly Time Signal1/100 second stopwatchMeasuring capacity: 59'59.99"Measuring modes: Elapsed time, split time, 1st-2nd place timesCountdown TimerMeasuring unit: 1 secondCountdown range: 60 minutes Full Auto Calendar (pre-programmed until the year 2099)12/24 Hour Formats Accuracy: +/- 15 seconds per month (with no signal calibration) Storage Battery: Solar Rechargeable Battery Battery Power IndicatorPower Saving Function