Science ❯Earth Sciences ❯Geophysics

Planetary Rotation

Time Measurement Earth's Rotation Changes Earth's Rotation Speed Moon's Influence Earth's Spin

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

Ruling out a 2025 leap second, international timekeepers prepare protocols for a possible negative adjustment by 2029.

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

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