Datedif gives wrong result


J

Jonathan Cooper

Beginning Date Ending Date months
11/30/2009 12/31/2009 1
11/30/2009 1/31/2010 2
11/30/2009 2/28/2010 2
11/30/2009 3/31/2010 4

I'm a bit puzzled. Beginning Date is in A1. Ending date in B1 and my
datedif formula in column C.

The formula starting in C2 is =DATEDIF(A2,B2,"m"). Shouldn't February be
equal to 3? Based upon Chip's site, I'm guessing that it has something to do
with leap year but the last one was in 2008 and the next one is in 2012 so
neither Date1 or Date2 have a leap year.

I've tried different beginning dates but January and February give the same
result. Obviously it is something to do with February.

Unfortunately I'm using Excel 2003 SP3. Windows XP SP3.

Any other way to find the number of months inbetween two dates?
 
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×

מיכ×ל (מיקי) ×בידן

As far as I remember [being among those who used "Lotus 123"] it was a "bug"
that Excel - who was the follow-up of "Lotus 123" - carried on with.
Unless you get better suggestion than mine - switch to "1904 system date"
[Tools > Options > Calculate tab]
Micky
 

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