By KENNETH CHANG

January 20, 2012

The Leap Second Gains a 3-Year Reprieve

With no consensus, international delegates postponed for three years a decision on whether to eliminate leap seconds, which help keep the world’s atomic clocks synchronized with Earth’s rotation.
January 19, 2012

To Keep or Kill? Lowly Leap Second Focus of World Debate

The United States wants to scrap the leap second, but beware: without it, noon will strike at sunrise thousands of years from now.
January 19, 2012

A Second Here a Second There May Just Be a Waste of Time

Seven hundred delegates from about 70 nations attending United Nations telecommunications agency meeting will decide whether to abolish the leap second, which is added on once every few years to synchronize atomic clocks; United States wants to scrap t...