FARGO — Here, literally, is a minute detail that matters, even if it is only a fraction of a second. At the recent General Conference on Weights and Measures in Paris, representatives from world ...

In Nepal, a nation wedged between India and China, a unique time zone is just one expression of a singular national identity.

For decades, the moon's subtle gravitational pull has posed a vexing challenge—atomic clocks on its surface would tick faster than those on Earth by about 56 microseconds per day. This extremely small ...

NASA and its international partners have big plans when it comes to the Moon—plans that will require the careful synching of Earth-based clocks with those on the Moon. The White House wants NASA to ...

The difference between Japan Standard Time (JST) and Coordinated Universal Time (UTC) has been reduced from typically ±20 ns to less than ±5 ns by the inclusion of the optical lattice clock since ...