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The Doomsday clock was set at 89 seconds to midnight on Tuesday morning, putting it the closest the world has ever been to what scientists deem "global catastrophe." The decades-old international ...

Millions of Americans will “spring forward” on Sunday, March 9, 2025, as daylight saving time (DST) begins. While many appreciate the extra evening sunlight, others dread the lost hour of sleep. The ...

The clock is so reliable that it would be off by less than a second if it had started running 100 million years ago, researchers say. A new atomic clock is one of the world’s best timekeepers, ...