t = INT_MAX;
        t /= 2;
        printf("equinox: %ld (%s) \n", (time_t)t, ctime(&t));

        memset(&tm, 0, sizeof(tm));
        tm.tm_sec = 11;
        tm.tm_min = 11;
        tm.tm_hour = 11;
        tm.tm_mday = 11;
        tm.tm_mon = 9;
        tm.tm_year = 2001;

        t = mktime(&tm);

        printf("day of sickness %ld (%s) \n", t, ctime(&t));