Earth rotates steadily, completing a full spin every 23 hours and 56 minutes. This relentless motion drives the day-night ...

Suppose you could speed up Earth’s rotation so that a day was only half as long? What would happen? Well, for starters we’d have to make new clocks that only have hours 1 to 6 for am and pm. If you ...

In a rare and unprecedented move, scientists and world timekeepers are considering reducing one second from Coordinated Universal Time (UTC) as Earth's rotation speeds up. The most recent data ...