DBD.83P (Days between Dates)
freeware by Daniel J. Bishop (danb2k@hotmail.com)

How to use this program
1.  Run prgmDBD.
2.  Enter the year (4 digit), month (1-12), and day (1-31) for the ealier date.
3.  Enter the month, day, and year for the later date.

Example #1:
DATE 1
YEAR=?2000
MONTH=?5
DAY=?31

DATE 2
YEAR=?2000
MONTH=?6
DAY=?1

DBD=
               1

Comment: Consecutive days give dbd=1.  If the dates entered are the same, dbd=0.

Example #2:
DATE 1
YEAR=?1983
MONTH=?4
DAY=?18

DATE 2
YEAR=?1982
MONTH=?12
DAY=?21

DBD=
            -118

Comment: If the dates entered are in the wrong order, the answer will be the negative of the correct answer

Example #3:
DATE 1
YEAR=?95
MONTH=?2
DAY=?10

DATE 2
YEAR=?00
MONTH=?2
DAY=?12

DBD=
          -34697

Comment: Your calculator is not smart to recognize that 00 is supposed to be five years after 95, so it gives a meaningless answer.  This is why you should use four-digit years, like in this next example:

Example #4:
DATE 1
YEAR=?1995
MONTH=?2
DAY=?10

DATE 2
YEAR=?2000
MONTH=?2
DAY=?12

DBD=
            1828

Comment:  What's the significance of the dates in these examples?  To find out, e-mail me at danb2k@hotmail.com