J. L. Trantham kirjoitti: > Interestingly, the time is 23:59:60 but the UTC ofs is still 16. > I guess it increments to 17 at the end of that operation, i.e., at 00:00:00. That is exactly how it should be. See my video of 2012 leap sec: https://www.youtube.com/watch?v=DbvMZikqtI4 -- 73s! Esa OH4KJU