Dating back to Ancient Greece, we’ve known Earth’s rotation takes about 24 hours to complete. Since then, we’ve updated our ...

At the International Earth Rotation and Reference Systems Service in Paris, a quiet calculation takes place several times a year. Technicians compare the world’s atomic clocks, which measure time with ...

Days are getting longer as a result of climate change, as warmer temperatures lead to a slowing of Earth’s rotation at a rate scientists say has not been seen for at least 3.6 million years. New ...

If you’re the kind of person who gets a lot done, you’re grateful for every one of the 86,400 seconds that make up a day. On July 9, however, as well as on July 22, and August 5, you won’t get your ...

Aren’t the summer days supposed to be longer and the winter days shorter? Since when have things gone in reverse for the summertime? Since now, maybe? Starting today? Okay, here’s what’s going on.

Earth takes 24 hours to complete a full rotation in a standard day, equal to exactly 86,400 seconds. July 9 was the first of three days in which a millisecond or more could be shaved off the clock on ...

Although the Earth completes one full rotation in 86,400 seconds on average, that spin fluctuates by a millisecond or two every day. Before 2020, the Earth never experienced a day shorter than the ...

Earth spun just a bit faster than usual on July 9 and is expected to do so again on July 22 and Aug. 5, according to the website TimeAndDate. Over a millisecond was reportedly shaved off the clock on ...

When humans pump groundwater, it has a substantial impact on the tilt of Earth’s rotation. Additionally, a study documents just how much of an influence groundwater pumping has on climate change.