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SUN, 18 OCT · 101 ITEMS
Hacker News, New Scientist · Geopolitics & Markets
The International Bureau of Weights and Measures () has decided to stop adding leap seconds to Coordinated Universal Time () by 2035. Leap seconds are occasional one-second adjustments that keep atomic time aligned with Earth's slowing rotation, but they cause recurring headaches for computer networks, satellite navigation, and financial systems. This decision, formalized in -2026 Resolution 5, effectively separates civil timekeeping from solar time, allowing the gap between UTC and astronomical time to grow without further corrective jumps. The transition plan gives the tech industry and timekeeping organizations nearly a decade to prepare for a leap-second-free future.
The claim is highly solid, as it directly references BIPM CGPM-2026 Resolution 5, an official decision by the BIPM—the primary international authority on timekeeping. Being a primary source (the resolution text itself), the reporting sits at the closest possible distance to the original document.
Genuinely new — this is a recent decision from the 2026 CGPM session, not a resurfacing of older material.