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

In this video, we break down how GPS determines your position using satellite timing, atomic clocks, and distance calculations. We also explore the real world sources of error, from atmospheric ...

For decades, atomic clocks have provided the most stable means of timekeeping. They measure time by oscillating in step with the resonant frequency of atoms, a method so accurate that it serves as the ...

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

Thanks to Einstein’s relativity, time flows differently on Mars than on Earth. NIST scientists have now nailed down the ...

Nuclear clocks are the next big thing in ultra-precise timekeeping. Recent publications in the journal Nature propose a new method and new technology to build the clocks. Timekeeping has become more ...

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

Losing GPS would mean losing a lot more than Google Maps. The technology is integrated into everything from lights that turn ...

NIST traced the problem to its Boulder, Colorado campus, where a prolonged utility power outage disrupted operations. The outage occurred during high winds that damaged power lines and triggered ...

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

Morning essentials for 2026 that boost energy and joy, from sunrise alarm clocks to sunlight lamps, cozy sneakers, self care ...

The Doomsday Clock currently sits at 89 seconds to midnight in 2025, marking humanity's closest approach to global catastrophe - but scientists say we'll never actually witness it reach the final hour ...