Universal Time (UT), adopted in 1928 by the International Astronomical Union, is the time standard used in astronomical almanacs, referencing the 0° longitude meridian (Greenwich). For high precision, ...

You cannot get 300 million people to agree on anything, except this: on Sunday morning, everyone in America (except in Arizona; come on, Arizona) will stagger their schedules in sync. As a collective, ...

Sommarøy, a tiny Norwegian island perennially dazzled by light in summer and smothered by darkness in winter, made headlines in June 2019 with the news it had taken the executive decision to cancel ...

On the first Sunday of every November, the U.S. time switches back to standard time, marking the end of the Daylight Saving Time (DST) period. This year, clocks were turned back by an hour at 2 a.m.

Map of time zones into which the U.S. was divided after the adoption of Standard Time on Nov. 18, 1883. Dated 19th century. Map of time zones into which the U.S. was divided after the adoption of ...

Take a look at a world map. On it, you'll see that it has a line titled "0° longitude" that goes straight through a little place called Greenwich in London, England. The line is where the world ...

As U.S. clocks shift forward this weekend, many earthlings will find themselves momentarily confused about what time it is. But scientists say a far larger temporal problem is looming on the horizon: ...