The National Institute of Standards and Technology (NIST) U.S. has set a new world record for the most accurate aluminum ion-based optical atomic clock. This clock sets a new time-keeping benchmark, ...

Add Yahoo as a preferred source to see more of our stories on Google. DENVER (KDVR) — It is said that time is relative and passes differently depending on an observer’s relative motion and ...

A power outage at a key atomic clock facility led to the US official time slowing down by just under five millionths of a second last week, the country’s time watchdog said. A severe windstorm knocked ...

The U.S. government calculates the country's official time using more than a dozen atomic clocks at a federal facility northwest of Denver. But when a destructive windstorm knocked out power to the ...

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Considering that 90% of American adults own mobile phones, the practice of interrupting strangers to inquire about the time has almost completely disappeared. Since these devices are so prolific in ...

Physicists have developed a highly precise and ultra-sensitive atomic clock based on ytterbium, which ...

A clock built by a team led by researchers at the National Institute of Standards and Technology (NIST) has been estimated to be 41 percent more accurate than the previous timekeeping record holder.

As if timekeeping in the U.S. wasn’t already pretty accurate, the U.S. Department of Commerce’s National Institute of Standards and Technology (NIST) just declared a new atomic clock, the NIST-F2, to ...