All articles tagged with #utc
Timekeepers may scrap the leap second as soon as October to prevent a possible negative leap second, opting instead for a leap hour that realigns time with Earth’s rotation after a full hour of drift. A CGPM vote in October will decide the change, aiming to reduce disruption to critical systems,-even as new long‑term challenges and rare edge cases are considered.
As Earth's rotation speeds up and the risk of a negative leap second grows, international timekeepers are weighing replacing leap seconds with a leap hour. A CGPM vote in October could formalize the change by 2035, aiming to reduce disruptions to GPS, banking, and other systems after past leap-second headaches like outages tied to UTC adjustments.
Scientists have observed that Earth's rotation is accelerating, leading to the possibility of introducing a negative leap second to maintain time synchronization, which could cause significant disruptions in global time-dependent systems.
Earth's recent faster rotation has led to discussions about implementing a negative leap second to keep atomic time aligned with astronomical time, but concerns over system disruptions and international coordination make its adoption unlikely in the near future.
Earth's rotation has been speeding up this summer due to the moon's position, causing days to be slightly shorter, with upcoming days on July 22 and August 5 expected to be the shortest of the year by a few milliseconds. This change is linked to the moon's gravitational influence, and while the milliseconds are imperceptible to most, they are crucial for precise systems like GPS and computers. Historically, Earth's days have been lengthening over billions of years, but recent observations show a temporary acceleration in rotation.