Science ❯Physics

Time Measurement

Atomic Clocks Chronobiology Chronometry Daylight Saving Time Standards Organizations Time Signals Attoseconds Gravitational Time Dilation Seasonal Changes Attosecond

Earth Registers Shortest Day on Record as Rotation Accelerates

Skipping June’s leap second keeps clocks aligned with Earth’s accelerating spin.

Earth Records One of Its Shortest Days on July 9

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

EU Clocks Spring Forward as Daylight Saving Time Continues Despite Calls for Reform

Daylight Saving Time Ends: Clocks Set to Fall Back

Global Warming May Delay Introduction of First-Ever Negative Leap Second