On June 29, Earth recorded its shortest day ever, when it completed a whole turn on its axis at 1.59 milliseconds short of 24 hours. We also recorded another shortened day on July 26, Popular Mechanics reported.
On both of these days, Earth completed its usual 24-hour rotation in less than 24 hours, and June 29 was the fastest time since atomic clocks began, tracking the planet’s rotation in the 1960s, according to timeanddate.com.
