SHARP Digital Alarm with AccuSet - Automatic Smart Clock, Never Needs Setting - Great for Seniors, Kids, and Everyone who Doesn't Want to Set a Clock! Black Case with Red LEDs

The clock is pre-programmed with the time so there is no need to worry about setting buttons.

Just select your time zone at the bottom of the clock and turn on the DST if applicable.

Plug the clock in to an approved electrical source. Quick Daylight Savings Time (DST) Adjustment - For quick adjustment for Daylight Savings Time, slide the DST switch at the bottom of the clock to ON to add one hour (+1 hr.).

For Standard Time slide switch to OFF to subtract one hour (-1 hr.) High/Low Dimmer control - Adjust the display brightness to your liking with the high or low dimmer control. Back up Battery - The button cell battery CR2032 is pre-installed and is used for the back-up battery and the time settings.

It is in a screw-secured cabinet at the bottom of the clock.

This battery will last for several years.