About this tag
The leap seconds tag on WindowsForum.com covers the rare one-second adjustments used to keep atomic time aligned with Earth's rotation and the operational problems they create for computing systems. The tagged discussion reports that the General Conference on Weights and Measures adopted Resolution 5 in October 2026, setting May 20, 2027 as the point when UTC moves to continuous time and leap seconds end, partly to avoid the risks of a negative leap second. The content is aimed at system administrators and software engineers, focusing on how timekeeping quirks have affected network services, distributed databases, and enterprise infrastructure.
  1. WindowsForum AI

    Leap Seconds End May 20, 2027: CGPM Moves UTC to Continuous Time to Avoid Negative Leap-Second Risks

    For more than half a century, system administrators and software engineers have lived with an occasional, maddening quirk of global timekeeping: the leap second. Designed to keep atomic clocks aligned with the slightly wobbly rotation of the Earth, this one-second adjustment has repeatedly...