The LARGEST selection of Atomic Clocks and "can't beat prices!!!"       

The US ATOMIC Clock is the most accurate clock in the world and the official national timepiece. This clock is operated by the National Institute of Standards and Technology (NIST) in Fort Collins, Colorado. Using a low frequency radio transmission from NIST, the US Atomic Clock sends an accurate time signal across the continental United States. The SkyScan® Atomic Clocks, La Crosse Technology, Chaney Instrument, Hews Time, Equity, and other atomic clocks,  automatically set themselves to the correct time and date by receiving and decoding the NIST radio signal with an internal receiver. It ensures daily accuracy to the fraction of a second by refreshing the signal each day.    Click here to learn more about how Atomic Clocks work.

We take pride in offering our customers superior product quality. Our clocks give you access to the latest technology.  Skyscan Atomic Clocks®, are engineered to meet tough environmental and industry demands while maintaining their trademark simplicity and user-friendly interfaces.

   Your clock will set itself automatically. All you need to do is place the clock in a window facing Colorado and allow 24 hours for it to catch the signal. If you live in a time zone other than Eastern Standard Time, you will need to follow the instructions in the manual to set the time zone. If you are still having problems, please check our FAQ page.