This clock comes with important features to provide information you need to know. The atomic digital clock wirelessly gives you the current temperatures, so you know whether you'll need a coat or able to wear flip-flops. It has a self-setting atomic time and date for the best accuracy. It can automatically reset for Daylight Saving's time. The digital wall/table clock is battery operated, so it will have the correct time after blackouts or power surges. This time-keeper gives you the ability to be prepared for almost anything. All you have to do is take a glance, and you will be set for the day.