static time_t mz_zip_dos_to_time_t(int dos_time, int dos_date) {
  struct tm tm;
  memset(&tm, 0, sizeof(tm));
  tm.tm_isdst = -1;
  tm.tm_year = ((dos_date >> 9) & 127) + 1980 - 1900;
  tm.tm_mon = ((dos_date >> 5) & 15) - 1;
  tm.tm_mday = dos_date & 31;
  tm.tm_hour = (dos_time >> 11) & 31;
  tm.tm_min = (dos_time >> 5) & 63;
  tm.tm_sec = (dos_time << 1) & 62;
  return mktime(&tm);
}