> Currently software has to be built to accommodate leap seconds Plenty is not. The Swift time type ignores them in its implementation. I filed an issue, and

> Currently software has to be built to accommodate leap seconds Plenty is not. The Swift time type ignores them in its implementation. I filed an issue, and they said there were no plans to implement them. Good choice it turns out. Who would of thought that adding a second on random new year changeovers would be worse than letting clocks drift. Me for one. We can have a "leap hour" in a thousand years. Till then do we care, I do not, if the clocks and the sun drift very slowly apart from each other?