atomic time

(Newser) - Earth's changing spin is threatening to toy with our sense of time in an unprecedented way—but only for a second. For the first time in history, world timekeepers may have to consider subtracting a second from our clocks in a few years because the planet is rotating a...

(Newser) - Who knew such a miniscule amount of time could have such a major effect? When we got an extra "leap second" Saturday—international timekeepers held atomic clocks back by one second to sync up with the Earth's rotation—it brought down a number of very high-profile websites, Wired...

(Newser) - Good news for people who didn't get enough sleep this week. Tonight you'll have an extra second to snooze. That's because a "leap second" will be added to the ultra-precise atomic clocks kept by international timekeepers. The Earth Rotation and Reference Systems Service is tasked with...