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.

Planet Earth is spinning a little faster today — resulting in one of the shortest days of the year. But the change will be so minuscule you won’t even notice. We’re talking even less time than the ...

Several factors are causing the length of a day on Earth to change. Tuesday, July 22 will be the second-shortest day of the year, as Earth completes a full rotation in less time than usual. The planet ...