> I say that POSIX time is beautiful because it, rather accidentally, codified a redefinition of the second.
Forcing the 1 day=86400 seconds stuff was one of the worst ideas ever, and we're still paying the consequences. Effectively it means you are really counting days, not seconds, but a day is not a precisely defined unit. Had they just kept as a simple count of seconds, that would have been useful and simple. And less error prone.
I sincerely don't get how can you say this is beautiful.