Science ❯ Earth Sciences ❯ Geophysics ❯ Earth Rotation

Time Measurement

Earth Spins Faster Than Ever, Logging One of the Shortest Days on Record

International timekeepers plan a negative leap second by 2029 to align clocks after the planet’s unexpected spin-up.

Earth Sets Second-Shortest Day of 2025 as Spin Continues to Accelerate

Earth Logs 1.34-Millisecond Day, Its Second-Shortest on Record

Scientists Confirm August 5 as Shortest Day of 2025, Eye Negative Leap Second

Earth's Spin Breaks Short-Day Records as Timekeepers Halt 2025 Leap Second

Three Record-Short Days Ahead as Earth’s Spin Accelerates