World time5 world times: 39 cities around the world (39 time zones with automatic daylight saving time setting function) + UTC (Coordinated Universal Time) time display with home time time change functionStopwatchStopwatch (1/100 second (less than 1 hour) / 1 second (1 hour or more) 24-hour counter with split)timer - Timer (set unit: 1 second maximum set: 24 hours measured in 1 second units)Alarm / time signal5 time alarms (only 1 with snooze function) time signalLightLED backlight (with full auto light super illuminator fade-in / fade-out afterglow function afterglow time switching (2 seconds / 4 seconds))Light color - LED: whitecalendar - Fully automatic calendar - Operation sound ON / OFF switching function - Operation sound ON / OFF switching function - Power saving function - Power saving function (In a dark place the display is turned off after a certain period of time to save power)Battery display / warning - Battery charge warning function - Drive time - Driving time without solar power generation from full charge - When using the function: Approximately 10 months - In power saving state: Approximately 22 monthsaccuracy* If radio waves are not received or if it does not work with a smartphone it will operate with normal quartz accuracy (average monthly difference ±15 seconds). Other functions12/24 hour system display switching - Date display (month / day display replacement)Day of the week display (switching between 6 languages: English West French German Italian and Russian)Time adjustment details - Home time city (city that supports reception function) / Received radio wave - Tokyo / Japanese standard radio waves JJY40 / JJY60Los Angeles Denver Chicago New York Halifax / American standard radio WWVBLondon Paris Athens / UK standard radio wave MSF / German standard - Radio DCF77Hong Kong / China standard radio wave BPCRadio reception function: Automatic reception (up to 6 times / day) (China radio waves up to 5 times / day) / manual reception