SKILCRAFT® SelfSet clocks are programmed to automatically adjust in the fall and spring to Daylight Savings Time without the use of a signal. Ideal for use in facilities where radio signals may not reach radio-controlled clocks. Clocks feature quartz movement for extreme accuracy (+/- 2.0 minutes per year). Includes a white dial with black Arabic numerals, black hour and minute hands, and red second hand. High-impact plastic frame is made using 30% post-consumer recycled content that will biodegrade in a landfill within approximately 2 years. The clear lens is shatter-resistant and UV-protected. Logo clocks include customizable Federal agency and military logos. Battery-operated movement uses one AA battery (not included).