Event Brief
UPDATED Oct 16, 2026 at 7:06 PM ET
Oct 16, 2026 at 7:02 AM ET
Global timekeepers vote to end leap seconds
By The BriefBrief
Global timekeepers voted to end the practice of adding leap seconds to Coordinated Universal Time (UTC), citing risks to computer systems and the prospect of a first-ever negative leap second. The change is set to take effect in 2027.
WHO: Global timekeepers
WHAT: Voted to end the practice of adding leap seconds to UTC.
WHEN: Reported Oct 16, 2026 at 12:49 PM ET
WHERE: Location not specified
WHY: They cited risks to computer systems and the prospect of a first-ever negative leap second.
Reporting from 4 identified publishers across this event arc.
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