Lutetium clocks have achieved record accuracy and comparison precision, making them promising candidates for future time standards and measurements of gravity.

Comtoise watches, as seen here in the Comtoise Museum of master watchmaker Bernd Deckert, are a French pendulum clock from the French region of Franch-Comte. While they are beautiful antiques, they ...

Physicists have unveiled the world’s most accurate clock — a timepiece so reliable that it would take more than 260 billion years to lose 1 second. Precision clocks are used in everything from ...

(Patcharin Saenlakon/iStockphoto/Getty Images) The time-keeping offered by your watch or phone may be good enough for day-to-day life, but scientists are much more ambitious in terms of precision, and ...

What if you could build a clock that would last for 10,000 years? A clock that would tick only once a year, bong once a century, and cuckoo once a millennium? A clock that would be a symbol of ...

An affordable, easy-to-use accessory for Echo device owners that helps make it easier to keep track of any timers you set with Alexa. A minor hiccup with the batteries during setup seems like sloppy ...

A Cold War icon, the clock conveys scientists’ views on humankind’s risk of destroying itself. Its current setting: just 100 seconds to midnight. The Doomsday Clock, reset each January, remains at 100 ...