Time zone conversion C API on Linux, anyone?

Question

I\'m looking for something that I presumed would be very simple - given local Unix time in a specific time zone (specified as a string, e.g., \"America/New_York\" - note tha

Answer 1

Why can't you use the gmtime_r()? Following worked fine for me:

int main()
{
    time_t t_gmt, t_local=time(NULL);
    struct tm tm_gmt;

    gmtime_r(&t_local, &tm_gmt);

    t_gmt = mktime(&tm_gmt);

    printf("Time now is:    %s", ctime(&t_local));
    printf("Time in GMT is: %s", ctime(&t_gmt));

    return 0;
}