Ultra precise Chinese lattice clock joins international system, challenging decades of US dominance in global timekeeping ...

Keeping perfect time is far trickier than it sounds. The world’s best clocks that are used for GPS navigation, satellite communication, and testing fundamental physics depend on carefully controlled ...

There are some clocks, mostly in or around international airports, which have multiple faces to show the time at various ...

(NEXSTAR) – There was bipartisan legislation, committee hearings, efforts from multiple states, and even presidential support, but the U.S. still observed the beginning and end of daylight saving time ...

Fancy bluetooth, old-school clock radio—it's all here.

System designers are thinking of precision timing as a layer, one that supports the entire stack, from hardware to software and applications.

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the difference, showing that Mars clocks tick slightly faster—and fluctuate over the ...