date2int is date2num

static void FO_date2num(Args _args)
  {
      date    date1 = systemDateGet();        // Today
      date    date2 = systemDateGet() - 1;    // Yesterday
      int     i;
      ;
 
      // Today - Yesterday
      i = date2num(date1) - date2num(date2);
 
      print i;
      pause;
  }