On Fri, Apr 22, 2016 at 8:04 PM, Zefram <zef...@fysh.org> wrote: > 18 steps > of binary search gets you down to the second, but actually modern zones > are always on integral-minute offsets, so you could look only at integral > minutes and take only 12 steps. For each UT time you try, convert it > to zone time and see which month it ends up in. >
I can't figure out how to search only down to the minute without causing it to find the wrong answer on days with two midnights.
