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 ...

Easing you into the day with light and sound, a pick of the best sunrise alarm clocks could be just the thing you need in ...

Unlike traditional alarms that rely only on loud noise to abruptly pull you from your slumber, sunrise alarm clocks use gradual light exposure to cue your body to wake up. Over time (usually 20 to 40 ...

Some people just want to have their cake and eat it too, but very few of us ever get to pull it off. [Erich Styger] has, though with V5 of his “MetaMetaClock”— a clock made of clocks, that uses the ...

Time appeared to skip a beat last week when some of the world’s most accurate clocks were affected by a wind-induced power ...

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

We normally think of atomic clocks as the gold standard in timekeeping. The very definition of a second — in modern times, at least — is 9,192,631,770 periods of the radiation corresponding to the ...

What started as a hobby became a full-blown business for Harold MacVittie more than a decade ago. His Chapin clock shop is still ticking.