Question about Microsoft Office Excel 2003 for PC

# Calculate Quarters between any two dates

Example: Start Date: 27/03/2006 End Date: 19/08/2006
I need to calculate how many complete three month periods have passed between the two dates - this is not as simple as converting the dates
to a timestamp, defining a year as 60 * 60 * 24 * 365.25 seconds, then dividing by 3, as the length of months do differ, as henceforth quarters will differ.
[while the above would work in a lot of cases, it would sometimes fall due to different lengths of months]. i.e. if you adjust the start dates:

Quarter 1: 1 Feb - 30 April - 89 days
Quarter 2: 1 May - 31 July - 92 days

as per my example- Start Date: 27/03/2006
End Date: 19/08/2006
my quarters will be as 1-4-2006 -> 31-07-2007 i.e 1 Quater and days will be calculated as 31-27=5 (27 inclusive) and ist 18 days (19 exclusive in end date)
final ans 1 Quarter and 23 days

Posted by on

• eimtiyazahma May 09, 2009

thanks the_fire but its the solution to problem, it will give interval in months divided by 3. in this scenario we have many 3 month quarter with different days i.e 89,90,91 and 92. because i have calculate days remaining also.

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• Master

Not sure if this is what you are after entirely but should at least help you out some what

=DATEDIF(A3,C3,"m")/3

As you said you cant just divide by 3 but I have divided the formula by 3 to see how many 3 months will go into the output you could maybe have another formula to divide it by 2 to see if it will divide by 2 to see if you get a whole number or not, if you do then you can just return the first part before the dot ( using split function ) and if the value is less then 1 then obviously the 3 months has not passed between the 2 dates

Posted on May 09, 2009

• Shane Russell May 09, 2009

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

Just a website link to show you how to use datedif in excel

• Shane Russell May 09, 2009

easiest way would be to have the dates split up into 3 columns

day, month, year and then use the datedif function to calculate the difference between the start and end of each ( day, month and year ) seperately / individually and then you can put it back together as a string afterwards.

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