⏰Leap Second Eliminated by BIPM in 2027
No More Leap Seconds, Ever
TL;DR
The International Bureau of Weights and Measures (BIPM) is ending leap seconds in 2027. This move simplifies timekeeping, avoiding disruptions like Qantas' 2012 booking system crash.
The International Bureau of Weights and Measures (BIPM) has officially decided to eliminate leap seconds starting May 20, 2027. This change simplifies timekeeping, removing the need for tech companies to implement complex workarounds like Google's 'smear' method. Leap seconds were introduced in 1972 to align atomic time with Earth's rotation but have caused issues for systems sensitive to precise timing, such as airline booking systems. The decision is based on the Earth's slowing rotation and the increasing likelihood of negative leap seconds due to climate change effects.
Key Points
BIPM will stop issuing leap seconds in May 2027, marking the end of a 55-year practice.
Leap seconds were introduced in 1972 to sync atomic clocks with Earth's rotation.
Tech companies like Google use 'smear' methods to manage leap seconds, spreading adjustments over time.
Qantas' booking system crashed in 2012 due to a leap second, highlighting the issue.
Negative leap seconds, while unlikely, could become necessary due to Earth's changing rotation speed.
Why It Matters
If you're running systems dependent on precise timekeeping, the leap second's end simplifies your life. No more dealing with sudden time jumps or complex workarounds. However, tech teams must still monitor for future adjustments like a leap hour, though millennia away.
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