C++ Converting a time string to seconds from the epoch

Question

I have a string with the following format:

2010-11-04T23:23:01Z

The Z indicates that the time is UTC.
I would rather store t

Answer 1

Problem here is that mktime uses local time not UTC time.

How about just computing the time difference between UTC and local time, then adding it to the value returned by mktime?

time_t local = time(NULL),
       utc   = mktime(gmtime(&local));
int    diff  = utc - local;