If July 9 felt like it went by super quick, there’s a reason, the Earth’s spin sped up, which means, the day was shorter. The Earth takes approximately 24 hours to complete one full rotation on its axis relative to the Sun,

As Earth spins faster than it has in decades, atomic clocks are catching the difference, and shorter days are on the horizon.

The Earth is predicted to make its fastest rotations on July 9, July 10, July 22 and August 5, according to a Time and Date article.