DreamSky Alarm Clocks for Bedrooms with Battery Backup, Auto Set Digital Clock with Date and Day of Week, Temperature, USB Port, Auto DST, Dimmer, 12/24H Black

Large Display with Full Range Dimmer: 5 inches Large LCD screen with nice eye care number display. Time, date and temperature display. Almost full range brightness settable (6 levels + auto dim ), you can easily change to have the view bright or dim it to extremely low.
Auto Set Time: The alarm clock will set itself to right time, date and temperature immediately once plugged in. The long lasting button cell backup battery (installed ) will holds all settings and ensure the time always be accurate in case of main power interrupted. What you need to do is set your time zone and wake up time. Simple as that. Even miss the right time, you are still able to set it manually.
Auto DST and selectable time zone: Automatically adjusts to Daylight Savings Time while set the DST on. Seven USA time zone (EST/ CST/ MST/ PST/AST/HAT/AKT) and one newfoundland time zone NST selectable for your location.
Ascending beeping alarm with snooze: Ascending alarm sound wake you up naturally. Additional snooze to counter oversleeping, simply press the snooze button once and go back to sleep. 8 minutes later the alarm will ring again.
Plug in clock with USB charging port: Powered by USB port by plug in outlet. Extra USB charging port for charging cellphone and other electronic device. 3 x AAA batteries( not included) as backup, which will store the setting and keep the time works in case of main power outage.