CHICAGO -- At the dawn of the nuclear age, scientists created the Doomsday Clock as a symbolic representation of how close humanity is to destroying the world. On Tuesday, nearly eight decades later, ...

Once again, most Americans had their clocks set forward by one hour this weekend, losing perhaps a bit of sleep but gaining more glorious sunlight in the evenings as the days warm into summer.Related ...

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Have the past year's events brought us closer to doomsday? We'll find out next week when scientists announce whether they will be moving the hands of the "Doomsday Clock" in 2026. The clock, which ...

Scientists have created a clock so precise it could redefine the second. The strontium optical lattice clock is one of the most accurate timepieces ever made, capable of measuring seconds to 19 ...

If your smartphone doubles as your alarm clock, you may be losing out on needed shut-eye as texts, alerts and other notifications come in throughout the night. Constant loud noise and bright lights ...