> ... backwards-going wall time happens every time we have a leap second. Granted, we're in a long dry spell at the moment, but it'll probably happen again in o

> ... backwards-going wall time happens every time we have a leap second. Granted, we're in a long dry spell at the moment, but it'll probably happen again in our lifetimes. Well, maybe not: > In November 2022 at the 27th General Conference on Weights and Measures, it was decided to abandon the leap second by or before 2035. From then the difference between atomic and astronomical time will be allowed to grow to a larger value yet to be determined. I just hope that 2035 is early enough to prevent a negative leap second, which hasn't happened before. It would be quite a brave experiment to have one of those just before abandoning the whole concept. From: https://en.wikipedia.org/wiki/Leap_second https://en.wikipedia.org/wiki/Leap_second