Brief by Shorts91 Newsdesk / 03:47am on 10 Jul 2025,Thursday Science
Atomic clocks show that on July 9, 2025, Earth’s rotation sped up slightly—shortening the day by approximately 1.3 milliseconds (about 0.0013 seconds) . This is part of an unusual trend since 2020: similar brief days are expected on July 22 and August 5, each up to 1.5 ms shorter . Experts suggest the Moon’s position—far from Earth’s equator—combined with internal geophysical factors, may be accelerating Earth’s spin . While imperceptible to humans, this signals a rare planetary shift. To adjust global timekeeping, a negative leap second may be introduced by 2029, marking a historic first.
