Earth takes 24 hours to complete a full rotation in a standard day, equal to exactly 86,400 seconds. July 9 was the first of three days in which a millisecond or more could be shaved off the clock on ...

As Earth spins faster than it has in decades, atomic clocks are catching the difference, and shorter days are on the horizon. When you purchase through links on our site, we may earn an affiliate ...

Earth is spinning faster this summer, making the days marginally shorter and attracting the attention of scientists and timekeepers. July 10 was the shortest day of the year so far, lasting 1.36 ...

Across the Northern Hemisphere, people are soaking up the long hours of summer sunlight, with no idea that they’re experiencing some of the shortest days since modern timekeeping began—by a ...