Assuming that by 'epoch time' you mean time_t, you don't need to convert to some other form. Since time_t is a lying liar and pretends every day is exactly 86400 seconds long, you can just do some /'s and %'s to find which fit in the same day and the highest for the day.
(of course, because of the undefined behavior around leap seconds, you can't really be sure whether % 86_400 == 0 is actually 00:00:00 or 23:59:60, but I think most systems repeat the 86399th instead. And since you can't tell anyway, it probably doesn't matter)
Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
Read Where should I post X? if you're not absolutely sure you're posting in the right place.
Please read these before you post! —
Posts may use any of the Perl Monks Approved HTML tags:
You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
- a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
Link using PerlMonks shortcuts! What shortcuts can I use for linking?
See Writeup Formatting Tips and other pages linked from there for more info.
| & || & |
| < || < |
| > || > |
| [ || [ |
| ] || ] ||