Now a Japanese company has commercialized one approach—an optical-lattice clock it claims is the most accurate on the market.

A network of Earth's best clocks will be synchronised with the most accurate one ever sent into space. But the device has a ...

Atomic clocks have long been the gold standard for measuring time and frequency. Among them, optical clocks—using atoms like strontium or aluminum—have reached staggering levels of accuracy, with ...

U.S. lawmakers held their first hearing Thursday in more than three years on a long-running debate to end the practice of ...

By entering the date, time, and location of an event, you can hop on to your little virtual time machine and get a glimpse of the enormous world clock. Whether you're planning a virtual meeting with ...

Precision equipment manufacturer Shimadzu Corp. said it has created the world’s most accurate time device: a clock that won’t deviate by 1 second even after operating for 10 billion years.

Whether we lock the clock on standard time year-round or daylight saving ... It returned in 1942 during World War II but was vastly more chaotic than it is today. Seasonal clock changes were ...

It returned in 1942 during World War II but was ... targeting the changing of the clocks have generally split between locking them on permanent standard time or daylight saving time.