You'd think that synchronizing the clocks across a fleet of modern servers is a solved problem, but it's actually quite a hard challenge to solve, especially if you want to get to nanosecond accuracy.

Today’s most advanced clocks keep time with an incredibly precise rhythm. But a new experiment suggests that clocks’ precision comes at a price: entropy. Entropy, or disorder, is created each time a ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Picture a clock ...

Humanity is closer than ever to catastrophe, according to the atomic scientists behind the Doomsday Clock. The ominous metaphor ticked one second closer to midnight this week. The clock now stands ...

The Bulletin of the Atomic Scientists set the clock at 90 seconds to midnight on Tuesday, citing the war in Ukraine as well as climate change, online disinformation and other threats. By Jesus Jiménez ...

This particular clock is technically an ion clock, which is different from the more common atomic clocks that are based on measuring the resonant frequencies of a single cesium atom to regulate time ...