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, ...
SDxCentral

Brazilian National Observatory enhances national timekeeping with Adtran’s Oscilloquartz super high-performance optical cesium clock

National timekeeping institution sought to enhance stability and precision to support critical national and international scientific work Adtran’s industry-first OSA 3300 SHP with optical pumping ...
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 ...
New Scientist

The clocks that helped define time from London's Royal Observatory

From sundials to atomic clocks, our understanding of time has become a lot more accurate as technological developments allowed us to measure it more precisely. Much more than helping us arrive on time ...