2026年10月15日 3:16 ET 发布 · 更新于 1 个月前 · 1 个来源

Clock ticking for leap second: Why timekeeping could change forever

Al Jazeera
Al Jazeera
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Clock ticking for leap second: Why timekeeping could change forever

Timekeepers add a leap second occasionally to keep our clocks and the Earth's rotation in tune. That could now change.

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