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Some of the world’s atomic clocks were off last week (by 5-millionths of a second)

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Some of the world's most accurate clocks were affected by a wind-induced power outage on Dec 17, 2025.

Some of the world's most accurate clocks were affected by a wind-induced power outage on Dec 17.

PHOTO: NYTIMES

Mike Ives and Adeel Hassan

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Time appeared to skip a beat last week when some of the world’s most accurate clocks were affected by a wind-induced power outage. The clocks were off by about five-millionths of a second – way faster than a blink or a snap of the fingers.

You probably didn’t notice and the impact was minimal because other US government clocks kept ticking along as usual.

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