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Earth's wobble may impact leap second timing
International timekeepers are considering eliminating the leap second, a modification added irregularly since 1972 to keep Coordinated Universal Time (UTC) aligned with Earth's variable rotation. This move aims to address the disruptions caused by leap seconds to digital systems and infrastructure, as they have historically caused outages and operational issues for companies and services worldwide. The decision, which could take effect in 2027, reflects a shift towards relying solely on highly precise atomic clocks, potentially allowing atomic time to gradually drift from Earth's rotation over thousands of years.
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