Source-linked briefing Science

Scientists Move to Replace the Leap Second with an Occasional Leap Hour

Scientists Move to Replace the Leap Second with an Occasional Leap Hour

Scientists are preparing to retire the leap second in favor of an occasional leap hour to keep civil time aligned with Earth’s rotation. The change is intended to simplify timekeeping for technology while preserving long-term alignment.

Original headline

Time’s up for the leap second as scientists swap it for the leap hour