Can I buy a clock or watch that automatically sets itself to NIST time?
There are many commercial manufacturers who make clocks that receive time signals from NIST radio station WWVB. These are sometimes marketed as “atomic clocks”, but we recommend that they be referred to as “radio-controlled clocks”. The broadcast station is located near Ft. Collins, Colorado and it continuously broadcasts a time code on a carrier frequency of 60 kHz. These clocks and watches typically synchronize overnight and keep time between synchronizations using an internal quartz crystal oscillator. The WWVB broadcast covers most of the continental United States during the daytime hours, and the coverage area increases at night. For more information, see the section on NIST radio broadcasts.
