Tuesday, July 22, is expected to be the second of three days in 2025 where more than a millisecond could be shaved off the day due to Earth's rotation

July 22 will not be a normal 24-hour day. Instead, Earth's rotation will be completed just shy of those 24 hours. Find out why

On July 9, 2025, scientists at the International Earth Rotation and Reference Systems Service (IERS) reported that the Earth completed its rotation approximately 1.3 to 1.6 milliseconds faster than the standard 24-hour period. Moreover, this is expected to happen again on July 22 and August 5 this year.

Broadly speaking, Earth takes roughly 24 hours to spin around on its axis. Ocean tides, volcanic activity and earthquakes can affect rotation speed. For years, however, the Earth has been spinning faster,

Planet Earth will spin a little faster on three separate days this summer, starting today. This will technically result in shorter days, but the change will be so minuscule you won’t even notice.

The Earth's rotation is about to accelerate significantly. According to scientists, July 9, July 22, and August 5 of this year will be some of the shortest days in recent memory as a result, slicing well over a millisecond off the usual 24 hours ...

“To me, the fact that human beings have caused the rotation of the Earth to change is kind of amazing.” Flowing water from melting ice in Scoresby Fjord, Greenland, in August 12, 2023. Olivier ...

It takes roughly 86,400 seconds for Earth to complete a full rotation. The measuring of that rotation will cause an actual loss of time on Wednesday, July 9. "86,400 seconds is another way of ...

“The Earth’s rotation is changing all the time.” In 2022 the International Bureau of Weights and Measures (BIPM), the organization responsible for global timekeeping, voted to abolish leap ...

Over the course of Earth’s history, its rotation has been slowing down. Some 1.4 billion years ago , a day lasted 18 hours and 41 minutes and during the Age of Dinosaurs, a day was only 23 hours.

Earth's Rotation Is Changing Because of Melting Polar Ice. Published Mar 27, 2024 at 12:00 PM EDT Updated Mar 29, 2024 at 11:33 AM EDT. By . Jess Thomson is a Newsweek Science Reporter based in ...