Chinese scientists create clock so precise it could redefine second - Optical clock measures time using light emitted by ...

Researchers from the University of Science and Technology of China have achieved a major breakthrough in optical clock technology, developing a strontium optical lattice clock with stability and ...

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 ...

To find out how clock accuracy is verified and which reference is used for comparison, we visited the Belarusian State Institute of Metrology (BelGIM), where most of the national standards are kept.

Scientists built a strontium clock that could redefine the second. Find out how this ultra-precise timepiece works and its potential uses in navigation and science.

For Rooney, the history of timekeeping has many pivotal moments - but three he picks out when talking to DCD are the invention of the pendulum and the balance spring in the 1600s, and centuries later, ...