SelfSet clock is programmed to automatically set itself to Daylight Saving Time without the use of a signal. Ideal for use in facilities where a radio signal may not reach radio-controlled clocks. Wall clock features quartz movement with extremely accurate time (+/- 2 minutes per year) & includes a white dial with black Arabic numerals, black hour & minute hands. Design also includes a red second hand & a shatter-resistant, UV-protected clear lens. 16-1/2" diameter clock uses one AA battery (not included) & comes with hanging hardware. High-impact plastic body contains 30 percent post-consumer recycled material.