The science behind why the Earth will spin just a little bit faster on July 9, July 22, and August 5, this year.

July 9 will be one of the shortest days ever, as Earth is spinning faster and scientists are still working to understand why. According to the International Earth Rotation and Reference Systems ...

Life & Culture Earth’s rotation will speed up for 3 days this summer. Here’s what that means Published: Jul. 09, 2025, 4:09 p.m.

Scientists anticipate that Earth's rotation will quicken enough to create three shorter days between July and August, starting Wednesday, July 9.

The Earth's rotation is likely to cause some shorter days this summer due to several factors.

Earth's rotation is speeding up for 3 days this summer — starting today Technically speaking, these days will be shorter.

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.

Earth is expected to complete a full rotation on July 9 in roughly 1.30 milliseconds less than the standard 86,400 seconds that define a 24-hour day, according to predictions based on astronomical ...