Science ❯ Earth Science ❯ Geophysics

Earth Rotation

Day Length Variations Length of Day Tidal Effects Chandler Wobble Timekeeping

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.

New Projections Confirm Record-Short Days This July and August