In this article we will learn how we can count the number of weeks in between two dates, number of months in between two dates, number of days in between two dates and number of years in between two dates. To calculate the number of days, weeks, months and years between dates,you can use the formula of “INT”, “TODAY” and “MOD” in Microsoft Excel 2010.

**INT: -** This function is used to return the whole number without decimals. This is better than changing the number of decimal places displayed, which would risk some numbers being rounded up and giving an incorrect result. **Syntax of “INT” function: =INT (number)** **Example: **Cell A1 contains the date.

*Select the cell B2 and write the formula =INT (A1)**Format this cell as “mm/dd/yyyy”.**This function will return only the date from cell A1.*

**MOD:** Returns the remainder after a number has been divided by a divisor. **Syntax of “MOD” function: =MOD (number, divisor)** **TODAY: -** This function is used to show the current date which will update automatically on a daily basis. All you need to do is place this function into the age calculation formula in place of a cell reference. **Syntax of “TODAY” function: =Today ()** **DATEDIF:-** This function is used to calculate the difference between a pair of dates. **Syntax of “DATEDIF” function: =DATEDIF (date1, date2, output requirement)** We have 2 dates, the 1st date in cell A1, and 2nd date in cell A2. To count the number of years in between two dates, use the DATEDIF function as shown in the following formula:

*Select the cell A3 and write the formula =***DATEDIF**(A1,A2,”Y”)*This function will return the value in years.*

To count the number of months in between two dates, use the DATEDIF function as shown in the following formula:

*Select the cell A4 and write the formula =***DATEDIF**(A1,A2,”M”)*This function will return the value in months.*

To calculate the number of weeks and days, use the DATEDIF function as shown in the following formula:

*Select the cell A5 and write the formula =***DATEDIF**(A1,A2,”D”)*This function will return the value in days.**To return the number of weeks divide the number of days to 7.*

**OR ** **Use the “YEAR”, “MONTH”, “AND” and “DAY” functions as shown in the following formula:-**

- Select the cell A3 and write the formula to calculate the years.
- =YEAR(A2)-YEAR(A1)-(MONTH(A2)/12)
- This function will return the no. of years in between 2 dates.

A lot of sites avoid using the DATEDIF function to calculate the difference in dates in Excel due to some bugs, as the DATEDIF functiondoesn’t have any documentation in the Excel Help file.But, Microsoft is continuously giving this feature / formula in all new versions.In case you want to avoid this function, you can use manual calculation. Like below… =INT((TODAY()-A1)/365.25) & ” years , ” & INT(MOD((TODAY()-A1)/365.25,1)*12) & ” months and ” & INT(MOD((TODAY()-A1)/30.4375,1)*30.4375) & ” days”. It will give the difference in Years, Months and in days. You can use A2 instead of today, where A2 is the greater day than A1 and the formula will give you the elapsed time between these 2 dates.

Hi there,

i copy-paste your formula as you written above:

=INT((TODAY()-A1)/365.25) & ” years , ” & INT(MOD((TODAY()-A1)/365.25,1)*12) & ” months and ” & INT(MOD((TODAY()-A1)/30.4375,1)*30.4375) & ” days”

but it didnt work out. could you give me the correct formula for the result to count years, month, weeks, and days?

appreciate your help.

Milla,

I think you adding “&” function with space may that could be reason for error, could you pls use below and let us know

=INT((TODAY()-A1)/365.25)&” years , “&INT(MOD((TODAY()-A1)/365.25,1)*12) &” months and “&INT(MOD((TODAY()-A1)/30.4375,1)*30.4375)&” days only”

thanks Rishi

=INT((TODAY()-A1)/365.25) & ” years , ” &

INT(MOD((TODAY()-A1)/365.25,1)*12) & ”

months and ” & INT(MOD((TODAY()-A1)/30.4375,1)*30.4375) & ” days”

INT((TODAY()-A1/365.25) & “years, ” & INT(MOD((TODAY()-A1/365.25,1)*12) &” moths and “& INT(MOD((TODAY()-A1/30.4375,1)*30.4375) &”days only” , i used this formula but don’t calculate, plz give me a reply

=INT((TODAY()-A1)/365.25) & ” years , ” & INT(MOD((TODAY()-A1)/365.25,1)*12) & ” months and ” & INT(MOD((TODAY()-A1)/30.4375,1)*30.4375) & ” days”

Use this. I retyped the quotation marks and it worked.

I think part of the problem is trying to put everything into one cell. I split it into three cells and it works fine.

A3: =INT((TODAY()-A1)/365.25)

A4: =INT(MOD((TODAY()-A1)/365.25,1)*12)

A5: =INT(MOD((TODAY()-A1)/30.4375,1)*30.4375)

Adam is right.

thank adam

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Hi

How Do you Convert years, months, days back

to complete days

A2 = 2 years

B2 = 6 Months

C2 = 27 Days

= ? how many actual Days

Hi Nico

Please use this formula =SUM(A1*365,B1*30,C1)

i used for converting but it giving the wrong answer

hey,

please try this formula:- =a2*365+b2*365/2+27

Dear Sir/Mam,

I have a date in a cell like:-(03/13) i want it like: “March-13″ is it possible please help me on this.

Hi Naushad,

You can select the cell where the date is in (03/13) format. Right click on the cell and select format cells. In Number Tab —> click on Date —> Select March – 13. Click on Ok

i’M TRYING TO SEE IF YOU CAN MAKE A FOMULA WITH A START DATE TO CALCULATE YEAR MONTH DAYS AND WILL STOP WHEN YOU ADD A STOP DATE. COULD YOU PLESE HELP ME WITH THIS PROBLEM. THANK YOU

IN ONE CELL START DATE-THE YEAR MONTH DAYS-STOP DATE

I am trying to calculate number of open days on action items. Cells used for calculation are today’s date, assigned date, target due date, date closed.

If there is no date closed and the action item is still open, I would like to know based on today’s date how many days has the action item been open since the assigned date but if the action item has a date closed then I would like to calculate days open based on assigned date and date closed.

hello,

I have one date in a cell and in a blank cell i would like to know the number of days between that date and todays dates (that the workbook is open) is that possible?

Hi Isabella

This is possible, you can do it.

Thank you, it works.

I am trying to calculate the number of months for a project end date occurring in 2014. The project start AND end date can be <2014 or greater than = 2015 – If so, the result is "0". How can I calculate the number of months in 2014 for projects that started before or during 2014?

So far I have the following:

=IF(OR(YEAR(End Date field )=2015),””,IF(YEAR(End Date field)>=2015,12,MONTH(End Date field)))

There seems to be one thing missing from all the formulas above which is how to calculate the weeks. I need to state the months, weeks and days between two dates on my invoice. Can anybody shed some light on getting that specific formula?

Hi Shai,

To count the number of weeks in between two dates divide the number of days to 7.