You're missing that the frequency of leap seconds is accelerating over time, because Earth's rotation is slowing down. The leap hour will therefore happen earli

You're missing that the frequency of leap seconds is accelerating over time, because Earth's rotation is slowing down. The leap hour will therefore happen earlier: https://www.ucolick.org/~sla/leapsecs/future2100.svg https://www.ucolick.org/~sla/leapsecs/future2100.svg