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

Earth is expected to spin faster than usual in the upcoming weeks, leading to slightly shorter days, scientists report, according to Live Science. On July 9, July 22, and August 5, 2025, the position of the moon will influence Earth's rotation, making each day between 1.3 and 1.51 milliseconds shorter than the standard 24 hours.

Thanks to atomic clocks (and all the worldly forces that influence them), scientists know that Earth's rotation has begun to slow down, thanks in large part to the loss of ice coverage in polar regions.