This smart wall clock will automatically self-adjust for daylight saving time, eliminating the hassle of taking down and re-setting the clock Twice each year! a tiny CPU chip which is programmed with the DST dates for the next 99 years is built into the reliable quartz movement. Once the clock is set, the hands will automatically move forward or backward to adjust for daylight saving time on the correct days each year. Features a heavy-duty 13.8 inch wide profile frame which is 2.25 inches deep, with a protective convex lens. A striking white dial has large, easy-to-read, Black Arabic numbers and Black hour and minute hands with a red second hand. The clock can be run with one AA battery (not included), or by using the included electrical convertor for simple plug-in operation.