SpaceNews

U.S. Naval Observatory to Add Leap Second to Clocks

On December 31, 2005 a “leap second” will be added to the world’s clocks at 23 hours, 59 minutes and 59 seconds Coordinated Universal Time (UTC). This corresponds to 6:59:59 pm Eastern Standard Time, ...
Dcist Daily

Ask DCist: What’s Up with the Naval Clock?

A couple of readers have written us to ask why the Master Clock at 34th Street and Massachusetts Ave NW, at the entrance of the U.S. Naval Observatory, hasn’t been working for the last few months. We ...
The Washington Post

Time, elements take their toll on Naval Observatory clock

Can you learn what happened to the clock at the entrance to the Naval Observatory on Massachusetts Avenue NW? It sat there in presumably broken condition for many weeks and then disappeared altogether ...
11Alive

Timekeepers’ tale: How US Naval Observatory anchors modern precision from 1707 shipwreck lessons

As we get ready to 'spring forward' in Atlanta, time is at the top of mind. Precise Time is kept in the U.S. by the Navy, at the U.S. Naval Observatory in Washington, D.C. The history of that dates ...
The Washington Post

Where Timing Truly Is Everything

A July 22 article about the U.S. Time Service Department incorrectly stated the location of the office's backup atomic clocks. The Alternate Master Clock facility is at Schriever Air Force Base in ...