Science ❯ Earth Sciences ❯ Geophysics

Earth Rotation

Time Measurement Timekeeping Length of Day Climate Change Effects Daylight Duration Day Length Impact on Climate Day Length Variations Climate Change

Earth’s Day Is Slowly Lengthening as Climate Shifts Accelerate a Subtle Spin Slowdown

Scientists link a recent uptick to climate-driven mass redistribution.

Winter Solstice 2025 Brings Year’s Shortest Day in Northern Hemisphere

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