Tag Archives: UTC

The astronomical clock in the town square of Prague, Czech Republic. Analog clocks like this, which tracked hours, minutes, and the motions of the Sun and Moon, have been replaced in scientific research by precise digital clocks and an internationally regulated system of timekeeping.
1999: Understanding Earth’s Gradually Slowing Spin

The Earth's spin gradually slows due to factors like tidal friction, affecting timekeeping and necessitating the addition of leap seconds to UTC