American Time radio-controlled atomic clocks use a battery movement with a radio receiver that receives a signal from the National Institute of Standards and Technology (NIST) Atomic clock in Ft. Collins, CO and automatically adjusts several times a day. Our atomic clocks are accurate to within one second with daily NIST updates. With good reception, American Time radio-controlled atomic clocks provide worry-free, accurate, synchronized time at an affordable price.

• User-selectable time zone settings (Eastern, Central, Mountain and Pacific)
• Easily switch Daylight Saving Time (DST) function ON/OFF
• Shatter-resistant polycarbonate crystal makes it easy to clean and keep the dial and hands dust free
• Power your radio-controlled atomic clock up to 5+ years using the battery pack and minimize clock maintenance. Included Battery Booster Pack uses 6 AA alkaline batteries (included) and connects to the clock movement with the battery dongle.
• Available clock cases: plastic, aluminum, wood
• 3-year product warranty

All radio-controlled clocks must receive the NIST signal from Ft. Collins, CO to function properly. Due to geographic location, atmospheric conditions, physical obstructions, and/or building materials and construction, certain locations may experience reception problems that prevent synchronization with the time signal station.

Contact American Time to request a sample radio-controlled atomic clock to test in your installation locations.