Black sleek wall clock with convex molded lens. 4 time zones. White dial with black Arabic numbers and thin black hands. Using the same technology NASA employs to tell time, Atomix clocks wirelessly synchronize with the National Institute of Standards and Technology's atomic clock in Boulder, Colorado. In addition to daily confirming the time, these clocks automatically adjust for Daylight Saving Time and run up to two years on a single AA battery. No wires, no worries, and no more excuses for being late. 12" diameter