The new Doomsday Clock time has been set by the Bulletin of the Atomic Scientists. Here’s what it means.

The Doomsday Clock is the closest it has ever been to midnight, after it was officially reset by the Bulletin of the Atomic ...

Most people in the United States will change their clocks this year because of Daylight Saving Time, a twice-a-year practice that shifts the clock to make better use of daylight. In 2026, the clock ...

Daylight saving time is defined as a period between spring and fall when clocks in most parts of the country are set one hour ahead of standard time. According to federal law, it always starts on the ...

Nuclear weapons, climate change and biological threats are the biggest concerns.

BUFFALO, N.Y. — High above Buffalo’s East Side, inside the tower of Corpus Christi Church, time quietly passes. But twice a year, one man climbs two towers to make sure it stays on track. “These are ...