If you don't want to deal with leaps at the leaf level, they are largely absorbed by most cloud hosts and NTPDs these days. The general idea is they'll smear a

If you don't want to deal with leaps at the leaf level, they are largely absorbed by most cloud hosts and NTPDs these days. The general idea is they'll smear a leap second over a whole day or more so most applications don't see it. People that do care about a clock second being a few microseconds +/- can still do it themselves. https://developers.google.com/time/smear https://developers.google.com/time/smear https://docs.ntpsec.org/latest/leapsmear.html https://docs.ntpsec.org/latest/leapsmear.html