The perfect clock for the office or home. This Howard Miller Auto DS™ wall clock automatically adjusts to Daylight Savings Time. This saves significant time in making a spring and fall change in an office setting where there are numerous clocks. A matte black case surrounds a white dial which features large, easy-to-read black Arabic numerals; black hour and minute hands, and a red second hand; and a flat glass crystal. Quartz, battery-operated Auto Daylight-Savings™ movement. Requires one AA battery (not included). Overall Dimensions: Diameter 15.75" (40 cm) Depth 1.75" (4 cm)