How calculate exact # of months between two dates?

[Mark Livingstone]

Hi,

Right now I am using the DATEDIF(CELL1, CELL2, "m") function. However,
it provides only single digit response. So, if the two dates are 20
JUNE and 20 SEPTEMBER, it will be 2 months. However, if the two dates
are 20 JUNE and 20 SEPTEMBER, it give me 1 month instead of 1 month
and X days (or, 1.x << this is exactly output that I am trying to
achieve)

Any idea how to do that? Excel 2003.

Thanks!

 

[Eduardo]

Hi,

=DATEDIF(D5,E5,"y")&" years "&DATEDIF(D5,E5,"ym")&" months
"&DATEDIF(D5,E5,"md")&" days"

Change range to fit your needs

if this helps please click yes, thanks

 

[Mike H]

Hi,

Just a personal opinion but month is just about the daftest interval for
measuring time there is, is a month 28,29,30 or 31 days Hmm.

Anyway, I think this is what you want

=DATEDIF(A1,B1,"m")&"."&DATEDIF(A1,B1,"md")

For help look here

http://www.cpearson.com/excel/datedif.htm

Mike

 

[Mike H]

Eduardo,

test your formula with these 2 dates

31/01/1943
01/03/2008

There are countless combinations that throw up this anomaly

Mike

 

[Mark Livingstone]

Thank you Eduardo and Mike H.

Mike H's formula worked. This is exactly what I was looking for

 

[Eduardo]

Hi Mike,
I check the formula and give me 65 years, 1month and 1 day, if I apply the
formula given by Cpearson in the link you sent it give me the same result,

I am intereste to know where the difference is, sorry if it's obvious but I
don't see it

 

[Mark Livingstone]

Hi,

Just a personal opinion but month is just about the daftest interval for
measuring time there is, is a month 28,29,30 or 31 days Hmm.

Anyway, I think this is what you want

=DATEDIF(A1,B1,"m")&"."&DATEDIF(A1,B1,"md")

The difference between 7/22/2009 and 8/21/2009 appears to be 0.30.
Odd.

 

[Mike H]

Eduardo,

Your formula returns

65 years 1 months -1 days


for those 2 dates. The second date is 1 March 2008. It is a well documented
error in datedif and I have a pet theory (probably incorrect) that this is
the reason it isn't documented.

Mike

 

[Mike H]

Eduardo,

It's probably clearer if you just use the "md" part of your formula


=DATEDIF(D5,E5,"md")&" days"

and note it returns (minus) -1 days

Mike

 

[Ashish Mathur]

Hi,

Is there a date range over which this anomaly occurs I.e. what does an end
user need to know (do's and don’t's) before using the DATEDIF() function.

--
Regards,

Ashish Mathur
Microsoft Excel MVP
www.ashishmathur.com