Can't convert date correctly

Question

Hi, I have a date in the format ddddd, which represents the number of days since December 28,1800. I want to be able to convert this to a java date and also be able to convert back to this format.
I've tried calculating the offset and adding it to a date then dividing to get the number of days but it's always off.
An example would be 73107, as a java date (MMddyyyy) this would be 02/24/2001.
This seems like an easy problem to me but I just can't get it to work right.

Answer 1

Hi, one more note. The code above works perfectly for convering a clarion date to a java date but I modified it to do the reverse but I keep getting values that are not accurate. Here's the code I'm using (based on the code above):
      Calendar cal = Calendar.getInstance();
      cal.setTimeZone(TimeZone.getTimeZone("America/St_Johns"));
      cal.clear();
      cal.set(cal.YEAR,1800);
      cal.set(cal.MONTH,11);
      cal.set(cal.DATE,28);
      cal.set(cal.HOUR_OF_DAY,0);
      Date date = cal.getTime();
      long x = date.getTime();
      long baseMillis=x < 0 ? -x : x;
      System.out.println(String.valueOf(baseMillis));
      long aDay=24*60*60*1000L;
      long elapsedMillis = aDate.getTime(); //date parameter passed in
      long result = (elapsedMillis+baseMillis)/aDay;
      System.out.println(result);Feb 24,2001 should return 73107 but instead it returns 73135