Clock is programmed to automatically set itself to Daylight Savings without the use of a signal. Includes a white dial with black Arabic numerals, and black hour and minute hands. Shatter-resistant UV-protected clear crystal. "Old schedule", "new schedule" and "Off" switch allows users to revert to former schedules compliant with 2007 Daylight Savings regulations. Ideal for use in facilities where a radio signal may not reach radio-controlled clocks. Hanging hardware included. Time Format: Analog; Power Source(s): Requires one AA battery (sold separately); Movement Type: Quartz.