STINNER Victor added the comment: Ignoring leap seconds introduces unexpected result.
datetime.timestamp -> datetime.fromtimestamp drops one second: $ ./python Python 3.5.0a1+ (default:760f222103c7+, Mar 3 2015, 15:36:36) >>> t=datetime.datetime(2012, 6, 30, 23, 59, 60).timestamp() >>> datetime.datetime.fromtimestamp(t) datetime.datetime(2012, 6, 30, 23, 59, 59) time and datetime modules behave differently: $ ./python Python 3.5.0a1+ (default:760f222103c7+, Mar 3 2015, 15:36:36) >>> import datetime, time >>> t1=datetime.datetime(2012, 6, 30, 23, 59, 59).timestamp() >>> t2=datetime.datetime(2012, 6, 30, 23, 59, 60).timestamp() >>> t2-t1 0.0 >>> t3=time.mktime((2012, 6, 30, 23, 59, 59, -1, -1, -1)) >>> t4=time.mktime((2012, 6, 30, 23, 59, 60, -1, -1, -1)) >>> t4-t3 1.0 >>> t1 == t2 == t3 True >>> t3, t4 (1341093599.0, 1341093600.0) ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue23574> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com