[PRECISE ATOMIC TIME] Accurate to the second Atomic time will automatically set and readjust to Daylight Saving Time (OFF option) [SIMPLE BATTERY OPERATED] Simple Set to your Time Zone selection (7 different choices, AST, EST, CST, MST, PST, AKT, HAT) [CALENDAR/TEMP] View month/day/weekday and Current Ambient temperature (°F/°C adjustable [TIME ALARM] Crescendo alarm sound with snooze duration of an extra 10 minutes Table stand or Wall Hang option