Science ❯Earth Science ❯Geophysics

Rotation of the Earth

Day Length Variations Time Measurement Variations in Rotation Speed of Rotation

Earth to Record Third-Shortest Day on Aug. 5 as Timekeepers Plan First Negative Leap Second

Rapid, unexplained shifts in Earth’s rotation are complicating coordination of global time standards.

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