Our caesium fountains are among only 12 worldwide. Meet the timekeepers who watch over them at the IST Metrology Division in New Delhi.

From Ancient Greece to modern India’s proud atomic clocks, see what’s ticking – and how that’s about to change.

We’re once again approaching the annual resetting of the Doomsday Clock. Last January, the Science and Security Board of the Bulletin of Atomic Scientists, a group of very smart people, moved the ...

NIST traced the problem to its Boulder, Colorado campus, where a prolonged utility power outage disrupted operations. The ...

We’re once again approaching the annual resetting of the Doomsday Clock. Last January, the Science and Security Board of the Bulletin of Atomic Scientists, a group of very smart people, moved the ...

As wars edge closer to nuclear flashpoints and climate collapse accelerates, the Doomsday Clock prepares to reveal how near ...

In 2023, the clock moved to 90 seconds to midnight after Russian President Vladimir Putin invaded Ukraine and broke the ...

Your New Year’s resolutions keep failing because you might be setting them wrong. Here’s how to set goals you can actually ...

We're once again approaching the annual resetting of the Doomsday Clock. Last January, the Science and Security Board of the Bulletin of Atomic Scientists, a group of very smart people, moved the ...

During the outage, some clocks lost connection to NIST’s measurement and distribution systems, resulting in a delay of 4.8 microseconds in NIST UTC, NIST spokeswoman Rebecca Jacobson confirmed. To put ...

"As the typical uncertainty of time transfer over the public Internet is on the order of one millisecond (1/1000th of a ...

Physicist Heinz von Foerster, claimed in 1960 that the world would end sometime in the 2020s, according to a report in Time ...