iinntt
increment_overflow_time_iinntt(time_t *tp, iinntt j)
iinntt y, mday, hour, min, saved_seconds;
iinntt li = y - (yourtm.tm_mon <= 1);
iinntt li = y + (1 < yourtm.tm_mon);
iinntt offset = EPOCH_LOCAL ? (daylight ? timezone : altzone) : 0;