Pete,

Thanks so much for the help, I just got back to the office and tried your
formulas: they work great. Was not familiar with "DATEDIF" but will file
that one in the archives.

Bernie,

I appreciate the link to the cpearson site and have read up on the function
also.
--
LAMP


"Pete_UK" wrote:

I assume your dates are in A9 and C9, so let's start with the simplest
expression and put this in G9 for the days:

=IF(DATEDIF(A9,C9,"md")=15,0,DATEDIF(A9,C9,"md"))

It will return 0 if there are more than 14 days difference.

Now put this in E9:

=IF(DATEDIF(A9,C9,"ym")
+IF(DATEDIF(A9,C9,"md")=15,1,0)=10,0,DATEDIF(A9, C9,"ym")
+IF(DATEDIF(A9,C9,"md")=15,1,0))

We have to take account of any carry forward from G, and if the number
of months is greater than 9 then this will show 0.

Finally, put this formula in D9:

=DATEDIF(A9,C9,"y")+IF(DATEDIF(A9,C9,"ym")
+IF(DATEDIF(A9,C9,"md")=15,1,0)=10,1,0)

This takes account of any carry forward from E.

You will need to apply similar logic for the overall totals.

Hope this helps.

Pete

On May 2, 7:39 pm, lampatmyfeet
wrote:
I need to compute the number of years, months and days between dates. After
doing so: if days = 15 then add 1 to month and days becomes 0, then if
months 9 add 1 to year and then months becomes 0.

I will need to do this for several rows and them sum up the individual columns

My format is as follows:

A B C D E F G
Date 1 thru Date 2 = yy mm dd
Date 3 thru Date 4 = yy mm dd
.
.
.
TOTAL YY MM DD

the numbers is columns E,F & G are the differances between dates 2 and 1
Date X is formated at follows mm/dd/yyyy

I have tried several formulas but seem to leave out some component. My
latest iteration for computing years is
=YEAR(C9)-YEAR(A9)-IF(OR(MONTH(C9)<MONTH(A9),AND(MONTH(C9)=MONTH(A9), DAY(C9Â*)<DAY(A9))),1,0)&""
but this formula will not allow me to total the column and the problem is
the same for the months and day columns.

Any help?
--
LAMP