To download the information contained in this database in Microsoft Excel, click on the following links: 2010 State Salary , 2011 State Salary , 2012 State Salary , 2013 State Salary, 2014 State Salary and 2015 State Salary.
atomic clock. an extremely accurate electronic clock regulated by the resonance frequency of atoms or molecules of certain substances, as cesium.
The US Government operates the world's most accurate clock, the atomic clock, in Colorado. This atomic clock is the standard reference for the correct time. The time is broadcasted 24-hours a day via a low frequency radio signal. When the sun goes down, the earth's upper atmosphere reflects these radio waves, allowing the signal to reach all continental US locations, and most of North America.