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Units of Measure
Spanish Language and Culture
US Navy History and Traditions
Clocks and Watches

Where is the official clock of the US?


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Wiki User
July 09, 2011 5:31AM

Original answer: I believe that the US Naval Observatory is the official time keeper of the United States.

The rest of the story: The USNO is one half of the equation. The National Institute of Standards and Technology is the other half.