Calculating the number of days between two dates in ExcelGetting Networkdays to accurately reflect the number...

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Calculating the number of days between two dates in Excel


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9















I consider 7 days to be a week,
so if I look at 1 January 2019 - 7 January 2019,
I would say that is 7 days. 
But often I seen when people are calculating the number of days between two dates or age they use the formula B1-A1 where A1 is the Start Date/DoB
and B1 is the end date or today's date. 
This would give 6 for the above example.



I use (B1-A1)+1 which gives 7
and for dates of birth I would use ((B1-A1)+1)/365.25
Which is correct?










share|improve this question




















  • 2





    7 - 1 is 6, no? What is correct depends on your definition and whether you include timestamps or not. When subtracting 20190101T00:00:00 from 20190107T23:59:59, you get 6.999, which can be rounded appropriately.

    – slhck
    yesterday











  • @slhck That really makes sense when you think about the time as well as date.

    – Naz
    yesterday






  • 7





    If start date/dob and today are the same day, do you want the answer to be 0 or 1? B1-A1 is the number of complete days that have past.

    – Forward Ed
    yesterday






  • 2





    You're asking whether exclusive or inclusive operations are correct. They're both correct, depending on what you are trying to achieve. See @Chris Rogers's answer below.

    – studog
    yesterday











  • (1) Well, there’s also the point of view that there are 5 days between 1 January and 7 January.  See this.  (2) If a person was born on 27 March 1959, on what day did they turn 20?  27 March 1979.  Now, if B1 = 27 March 1979 and A1 = 27 March 1959, what does your formula say?  What does it say for B1 = 26 March 1979?

    – Scott
    14 mins ago
















9















I consider 7 days to be a week,
so if I look at 1 January 2019 - 7 January 2019,
I would say that is 7 days. 
But often I seen when people are calculating the number of days between two dates or age they use the formula B1-A1 where A1 is the Start Date/DoB
and B1 is the end date or today's date. 
This would give 6 for the above example.



I use (B1-A1)+1 which gives 7
and for dates of birth I would use ((B1-A1)+1)/365.25
Which is correct?










share|improve this question




















  • 2





    7 - 1 is 6, no? What is correct depends on your definition and whether you include timestamps or not. When subtracting 20190101T00:00:00 from 20190107T23:59:59, you get 6.999, which can be rounded appropriately.

    – slhck
    yesterday











  • @slhck That really makes sense when you think about the time as well as date.

    – Naz
    yesterday






  • 7





    If start date/dob and today are the same day, do you want the answer to be 0 or 1? B1-A1 is the number of complete days that have past.

    – Forward Ed
    yesterday






  • 2





    You're asking whether exclusive or inclusive operations are correct. They're both correct, depending on what you are trying to achieve. See @Chris Rogers's answer below.

    – studog
    yesterday











  • (1) Well, there’s also the point of view that there are 5 days between 1 January and 7 January.  See this.  (2) If a person was born on 27 March 1959, on what day did they turn 20?  27 March 1979.  Now, if B1 = 27 March 1979 and A1 = 27 March 1959, what does your formula say?  What does it say for B1 = 26 March 1979?

    – Scott
    14 mins ago














9












9








9


2






I consider 7 days to be a week,
so if I look at 1 January 2019 - 7 January 2019,
I would say that is 7 days. 
But often I seen when people are calculating the number of days between two dates or age they use the formula B1-A1 where A1 is the Start Date/DoB
and B1 is the end date or today's date. 
This would give 6 for the above example.



I use (B1-A1)+1 which gives 7
and for dates of birth I would use ((B1-A1)+1)/365.25
Which is correct?










share|improve this question
















I consider 7 days to be a week,
so if I look at 1 January 2019 - 7 January 2019,
I would say that is 7 days. 
But often I seen when people are calculating the number of days between two dates or age they use the formula B1-A1 where A1 is the Start Date/DoB
and B1 is the end date or today's date. 
This would give 6 for the above example.



I use (B1-A1)+1 which gives 7
and for dates of birth I would use ((B1-A1)+1)/365.25
Which is correct?







microsoft-excel date-time date






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 19 mins ago









Scott

16.1k113990




16.1k113990










asked yesterday









NazNaz

17412




17412








  • 2





    7 - 1 is 6, no? What is correct depends on your definition and whether you include timestamps or not. When subtracting 20190101T00:00:00 from 20190107T23:59:59, you get 6.999, which can be rounded appropriately.

    – slhck
    yesterday











  • @slhck That really makes sense when you think about the time as well as date.

    – Naz
    yesterday






  • 7





    If start date/dob and today are the same day, do you want the answer to be 0 or 1? B1-A1 is the number of complete days that have past.

    – Forward Ed
    yesterday






  • 2





    You're asking whether exclusive or inclusive operations are correct. They're both correct, depending on what you are trying to achieve. See @Chris Rogers's answer below.

    – studog
    yesterday











  • (1) Well, there’s also the point of view that there are 5 days between 1 January and 7 January.  See this.  (2) If a person was born on 27 March 1959, on what day did they turn 20?  27 March 1979.  Now, if B1 = 27 March 1979 and A1 = 27 March 1959, what does your formula say?  What does it say for B1 = 26 March 1979?

    – Scott
    14 mins ago














  • 2





    7 - 1 is 6, no? What is correct depends on your definition and whether you include timestamps or not. When subtracting 20190101T00:00:00 from 20190107T23:59:59, you get 6.999, which can be rounded appropriately.

    – slhck
    yesterday











  • @slhck That really makes sense when you think about the time as well as date.

    – Naz
    yesterday






  • 7





    If start date/dob and today are the same day, do you want the answer to be 0 or 1? B1-A1 is the number of complete days that have past.

    – Forward Ed
    yesterday






  • 2





    You're asking whether exclusive or inclusive operations are correct. They're both correct, depending on what you are trying to achieve. See @Chris Rogers's answer below.

    – studog
    yesterday











  • (1) Well, there’s also the point of view that there are 5 days between 1 January and 7 January.  See this.  (2) If a person was born on 27 March 1959, on what day did they turn 20?  27 March 1979.  Now, if B1 = 27 March 1979 and A1 = 27 March 1959, what does your formula say?  What does it say for B1 = 26 March 1979?

    – Scott
    14 mins ago








2




2





7 - 1 is 6, no? What is correct depends on your definition and whether you include timestamps or not. When subtracting 20190101T00:00:00 from 20190107T23:59:59, you get 6.999, which can be rounded appropriately.

– slhck
yesterday





7 - 1 is 6, no? What is correct depends on your definition and whether you include timestamps or not. When subtracting 20190101T00:00:00 from 20190107T23:59:59, you get 6.999, which can be rounded appropriately.

– slhck
yesterday













@slhck That really makes sense when you think about the time as well as date.

– Naz
yesterday





@slhck That really makes sense when you think about the time as well as date.

– Naz
yesterday




7




7





If start date/dob and today are the same day, do you want the answer to be 0 or 1? B1-A1 is the number of complete days that have past.

– Forward Ed
yesterday





If start date/dob and today are the same day, do you want the answer to be 0 or 1? B1-A1 is the number of complete days that have past.

– Forward Ed
yesterday




2




2





You're asking whether exclusive or inclusive operations are correct. They're both correct, depending on what you are trying to achieve. See @Chris Rogers's answer below.

– studog
yesterday





You're asking whether exclusive or inclusive operations are correct. They're both correct, depending on what you are trying to achieve. See @Chris Rogers's answer below.

– studog
yesterday













(1) Well, there’s also the point of view that there are 5 days between 1 January and 7 January.  See this.  (2) If a person was born on 27 March 1959, on what day did they turn 20?  27 March 1979.  Now, if B1 = 27 March 1979 and A1 = 27 March 1959, what does your formula say?  What does it say for B1 = 26 March 1979?

– Scott
14 mins ago





(1) Well, there’s also the point of view that there are 5 days between 1 January and 7 January.  See this.  (2) If a person was born on 27 March 1959, on what day did they turn 20?  27 March 1979.  Now, if B1 = 27 March 1979 and A1 = 27 March 1959, what does your formula say?  What does it say for B1 = 26 March 1979?

– Scott
14 mins ago










3 Answers
3






active

oldest

votes


















15














The answer revolves around how Excel deals with dates. When days between dates are calculated using formulae such as B1-A1, Excel would turn the dates into serial numbers and use the serial numbers to calculate the number or days in between.




By default, January 1, 1900 is serial number 1, and January 1, 2008 is serial number 39448 because it is 39,447 days after January 1, 1900. (Source: Microsoft)




So the days between January 1, 1900 and January 7, 1900 would equal 7 minus 1 equalling 6.



The same would apply with 1/1/2008 - 7/1/2008



January 1, 2008 is 39,447 and
January 7, 2008 is 39,453



39,453 — 39,447 = 6



If you wish to count the days inclusive you would need to add 1 to make the formula to be for example B1-A1+1.



If you want to calculate days exclusive you would need to minus 1 day making B1-A1-1






share|improve this answer





















  • 3





    The deeper answer is that mathematical operations like + and - are defined as an exclusive operation. It's not Excel-specific; the Excel part is the translation from date/timestamps to serial numbers.

    – studog
    yesterday



















15














It is not a question of one formula being right and the other being wrong. It is a question of what you are looking for.



Say you are working on a task 24 hours a day. You begin the task 17 January 2000 at 9:00 AM and complete the task 18 January 2000 at 9:00 AM. If the question is How many days did the task take ? You would take the difference; get 24 hours and answer 1 day.

If, however, the question is On how many days did you work on the task ? You would immediately respond 2



Thus =B1 - A1 or =B1 - A1 + 1 might be appropriate depending on what you are trying to measure.






share|improve this answer

































    1














    I wold like to suggest 3 different Formula to Calculate AGE between 2 Dates.



    enter image description here




    1. To get only Years:


    =INT((B1-A1)/365)



    Or,



    =ROUNDDOWN(YEARFRAC(A1, B1, 1), 0)



    Or, you may use TODAY() Function also:



    =ROUNDDOWN(YEARFRAC(A1, TODAY(), 1), 0)





    1. To Get Complete Age in Years, Months and Days use this one.



      =DATEDIF(A1,B1,"Y") & " Years, " & DATEDIF(A1,B1,"YM") & " Months, " & DATEDIF(A1,B1,"MD") & " Days"



    Edited:



    Counting number of days between two Dates is little bit arbitrary. Basically depends on need.




    1. Count number of days, Excluding Start
      Date
      .

    2. Count number of days, Including Start
      Date
      .

    3. Count number of days, Excluding both
      Start & End Date
      .


    enter image description here



    Considering OP's Sample Dates following Formula can be used.



    Formula for situation 1:



    =DATEDIF(B2,B3,"d")



    =DAYS(B3,B2)



    =INT(B3-B2)



    Formula for situation 2:



    =DATEDIF(B2,B3,"d")+1



    =DAYS(B3,B2)+1



    =INT(B3-B2+1)



    Formula for situation 3:



    =DATEDIF(B2,B3,"d")-1



    =DAYS(B3,B2)-1



    =INT(B3-B2-1)



    Adjust Cell references in the Formula as needed.






    share|improve this answer





















    • 3





      This is over complicating things and doesn't answer the question (how many days). The OP is not asking number of years or years, months and days.

      – Chris Rogers
      yesterday











    • @ChrisRogers,, Read my post I've suggested all possible Formula, including the OP's one, regarding ((B1-A1)+1)/365.25. It's really unfortunate to get DOWN VOTE after All !!

      – Rajesh S
      yesterday













    • @ChrisRogers,, this is part of OP,,But often I seen when people are calculating the number of days between 2 dates or age they use the formula B1-A1

      – Rajesh S
      yesterday











    • @ChrisRogers,, considering the Formula OP has written and I've shown in comments ,, my solution has Focused on ALL that and the Suggested one is an improvise version I've shown with my Answer !! =INT((B1-A1)/365)

      – Rajesh S
      yesterday








    • 2





      INT((B1-A1)/365) can provide the wrong result if there is are leap years involved.

      – Chris Rogers
      yesterday











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    3 Answers
    3






    active

    oldest

    votes








    3 Answers
    3






    active

    oldest

    votes









    active

    oldest

    votes






    active

    oldest

    votes









    15














    The answer revolves around how Excel deals with dates. When days between dates are calculated using formulae such as B1-A1, Excel would turn the dates into serial numbers and use the serial numbers to calculate the number or days in between.




    By default, January 1, 1900 is serial number 1, and January 1, 2008 is serial number 39448 because it is 39,447 days after January 1, 1900. (Source: Microsoft)




    So the days between January 1, 1900 and January 7, 1900 would equal 7 minus 1 equalling 6.



    The same would apply with 1/1/2008 - 7/1/2008



    January 1, 2008 is 39,447 and
    January 7, 2008 is 39,453



    39,453 — 39,447 = 6



    If you wish to count the days inclusive you would need to add 1 to make the formula to be for example B1-A1+1.



    If you want to calculate days exclusive you would need to minus 1 day making B1-A1-1






    share|improve this answer





















    • 3





      The deeper answer is that mathematical operations like + and - are defined as an exclusive operation. It's not Excel-specific; the Excel part is the translation from date/timestamps to serial numbers.

      – studog
      yesterday
















    15














    The answer revolves around how Excel deals with dates. When days between dates are calculated using formulae such as B1-A1, Excel would turn the dates into serial numbers and use the serial numbers to calculate the number or days in between.




    By default, January 1, 1900 is serial number 1, and January 1, 2008 is serial number 39448 because it is 39,447 days after January 1, 1900. (Source: Microsoft)




    So the days between January 1, 1900 and January 7, 1900 would equal 7 minus 1 equalling 6.



    The same would apply with 1/1/2008 - 7/1/2008



    January 1, 2008 is 39,447 and
    January 7, 2008 is 39,453



    39,453 — 39,447 = 6



    If you wish to count the days inclusive you would need to add 1 to make the formula to be for example B1-A1+1.



    If you want to calculate days exclusive you would need to minus 1 day making B1-A1-1






    share|improve this answer





















    • 3





      The deeper answer is that mathematical operations like + and - are defined as an exclusive operation. It's not Excel-specific; the Excel part is the translation from date/timestamps to serial numbers.

      – studog
      yesterday














    15












    15








    15







    The answer revolves around how Excel deals with dates. When days between dates are calculated using formulae such as B1-A1, Excel would turn the dates into serial numbers and use the serial numbers to calculate the number or days in between.




    By default, January 1, 1900 is serial number 1, and January 1, 2008 is serial number 39448 because it is 39,447 days after January 1, 1900. (Source: Microsoft)




    So the days between January 1, 1900 and January 7, 1900 would equal 7 minus 1 equalling 6.



    The same would apply with 1/1/2008 - 7/1/2008



    January 1, 2008 is 39,447 and
    January 7, 2008 is 39,453



    39,453 — 39,447 = 6



    If you wish to count the days inclusive you would need to add 1 to make the formula to be for example B1-A1+1.



    If you want to calculate days exclusive you would need to minus 1 day making B1-A1-1






    share|improve this answer















    The answer revolves around how Excel deals with dates. When days between dates are calculated using formulae such as B1-A1, Excel would turn the dates into serial numbers and use the serial numbers to calculate the number or days in between.




    By default, January 1, 1900 is serial number 1, and January 1, 2008 is serial number 39448 because it is 39,447 days after January 1, 1900. (Source: Microsoft)




    So the days between January 1, 1900 and January 7, 1900 would equal 7 minus 1 equalling 6.



    The same would apply with 1/1/2008 - 7/1/2008



    January 1, 2008 is 39,447 and
    January 7, 2008 is 39,453



    39,453 — 39,447 = 6



    If you wish to count the days inclusive you would need to add 1 to make the formula to be for example B1-A1+1.



    If you want to calculate days exclusive you would need to minus 1 day making B1-A1-1







    share|improve this answer














    share|improve this answer



    share|improve this answer








    edited yesterday

























    answered yesterday









    Chris RogersChris Rogers

    1,021220




    1,021220








    • 3





      The deeper answer is that mathematical operations like + and - are defined as an exclusive operation. It's not Excel-specific; the Excel part is the translation from date/timestamps to serial numbers.

      – studog
      yesterday














    • 3





      The deeper answer is that mathematical operations like + and - are defined as an exclusive operation. It's not Excel-specific; the Excel part is the translation from date/timestamps to serial numbers.

      – studog
      yesterday








    3




    3





    The deeper answer is that mathematical operations like + and - are defined as an exclusive operation. It's not Excel-specific; the Excel part is the translation from date/timestamps to serial numbers.

    – studog
    yesterday





    The deeper answer is that mathematical operations like + and - are defined as an exclusive operation. It's not Excel-specific; the Excel part is the translation from date/timestamps to serial numbers.

    – studog
    yesterday













    15














    It is not a question of one formula being right and the other being wrong. It is a question of what you are looking for.



    Say you are working on a task 24 hours a day. You begin the task 17 January 2000 at 9:00 AM and complete the task 18 January 2000 at 9:00 AM. If the question is How many days did the task take ? You would take the difference; get 24 hours and answer 1 day.

    If, however, the question is On how many days did you work on the task ? You would immediately respond 2



    Thus =B1 - A1 or =B1 - A1 + 1 might be appropriate depending on what you are trying to measure.






    share|improve this answer






























      15














      It is not a question of one formula being right and the other being wrong. It is a question of what you are looking for.



      Say you are working on a task 24 hours a day. You begin the task 17 January 2000 at 9:00 AM and complete the task 18 January 2000 at 9:00 AM. If the question is How many days did the task take ? You would take the difference; get 24 hours and answer 1 day.

      If, however, the question is On how many days did you work on the task ? You would immediately respond 2



      Thus =B1 - A1 or =B1 - A1 + 1 might be appropriate depending on what you are trying to measure.






      share|improve this answer




























        15












        15








        15







        It is not a question of one formula being right and the other being wrong. It is a question of what you are looking for.



        Say you are working on a task 24 hours a day. You begin the task 17 January 2000 at 9:00 AM and complete the task 18 January 2000 at 9:00 AM. If the question is How many days did the task take ? You would take the difference; get 24 hours and answer 1 day.

        If, however, the question is On how many days did you work on the task ? You would immediately respond 2



        Thus =B1 - A1 or =B1 - A1 + 1 might be appropriate depending on what you are trying to measure.






        share|improve this answer















        It is not a question of one formula being right and the other being wrong. It is a question of what you are looking for.



        Say you are working on a task 24 hours a day. You begin the task 17 January 2000 at 9:00 AM and complete the task 18 January 2000 at 9:00 AM. If the question is How many days did the task take ? You would take the difference; get 24 hours and answer 1 day.

        If, however, the question is On how many days did you work on the task ? You would immediately respond 2



        Thus =B1 - A1 or =B1 - A1 + 1 might be appropriate depending on what you are trying to measure.







        share|improve this answer














        share|improve this answer



        share|improve this answer








        edited 18 hours ago

























        answered yesterday









        Gary's StudentGary's Student

        14.1k31733




        14.1k31733























            1














            I wold like to suggest 3 different Formula to Calculate AGE between 2 Dates.



            enter image description here




            1. To get only Years:


            =INT((B1-A1)/365)



            Or,



            =ROUNDDOWN(YEARFRAC(A1, B1, 1), 0)



            Or, you may use TODAY() Function also:



            =ROUNDDOWN(YEARFRAC(A1, TODAY(), 1), 0)





            1. To Get Complete Age in Years, Months and Days use this one.



              =DATEDIF(A1,B1,"Y") & " Years, " & DATEDIF(A1,B1,"YM") & " Months, " & DATEDIF(A1,B1,"MD") & " Days"



            Edited:



            Counting number of days between two Dates is little bit arbitrary. Basically depends on need.




            1. Count number of days, Excluding Start
              Date
              .

            2. Count number of days, Including Start
              Date
              .

            3. Count number of days, Excluding both
              Start & End Date
              .


            enter image description here



            Considering OP's Sample Dates following Formula can be used.



            Formula for situation 1:



            =DATEDIF(B2,B3,"d")



            =DAYS(B3,B2)



            =INT(B3-B2)



            Formula for situation 2:



            =DATEDIF(B2,B3,"d")+1



            =DAYS(B3,B2)+1



            =INT(B3-B2+1)



            Formula for situation 3:



            =DATEDIF(B2,B3,"d")-1



            =DAYS(B3,B2)-1



            =INT(B3-B2-1)



            Adjust Cell references in the Formula as needed.






            share|improve this answer





















            • 3





              This is over complicating things and doesn't answer the question (how many days). The OP is not asking number of years or years, months and days.

              – Chris Rogers
              yesterday











            • @ChrisRogers,, Read my post I've suggested all possible Formula, including the OP's one, regarding ((B1-A1)+1)/365.25. It's really unfortunate to get DOWN VOTE after All !!

              – Rajesh S
              yesterday













            • @ChrisRogers,, this is part of OP,,But often I seen when people are calculating the number of days between 2 dates or age they use the formula B1-A1

              – Rajesh S
              yesterday











            • @ChrisRogers,, considering the Formula OP has written and I've shown in comments ,, my solution has Focused on ALL that and the Suggested one is an improvise version I've shown with my Answer !! =INT((B1-A1)/365)

              – Rajesh S
              yesterday








            • 2





              INT((B1-A1)/365) can provide the wrong result if there is are leap years involved.

              – Chris Rogers
              yesterday
















            1














            I wold like to suggest 3 different Formula to Calculate AGE between 2 Dates.



            enter image description here




            1. To get only Years:


            =INT((B1-A1)/365)



            Or,



            =ROUNDDOWN(YEARFRAC(A1, B1, 1), 0)



            Or, you may use TODAY() Function also:



            =ROUNDDOWN(YEARFRAC(A1, TODAY(), 1), 0)





            1. To Get Complete Age in Years, Months and Days use this one.



              =DATEDIF(A1,B1,"Y") & " Years, " & DATEDIF(A1,B1,"YM") & " Months, " & DATEDIF(A1,B1,"MD") & " Days"



            Edited:



            Counting number of days between two Dates is little bit arbitrary. Basically depends on need.




            1. Count number of days, Excluding Start
              Date
              .

            2. Count number of days, Including Start
              Date
              .

            3. Count number of days, Excluding both
              Start & End Date
              .


            enter image description here



            Considering OP's Sample Dates following Formula can be used.



            Formula for situation 1:



            =DATEDIF(B2,B3,"d")



            =DAYS(B3,B2)



            =INT(B3-B2)



            Formula for situation 2:



            =DATEDIF(B2,B3,"d")+1



            =DAYS(B3,B2)+1



            =INT(B3-B2+1)



            Formula for situation 3:



            =DATEDIF(B2,B3,"d")-1



            =DAYS(B3,B2)-1



            =INT(B3-B2-1)



            Adjust Cell references in the Formula as needed.






            share|improve this answer





















            • 3





              This is over complicating things and doesn't answer the question (how many days). The OP is not asking number of years or years, months and days.

              – Chris Rogers
              yesterday











            • @ChrisRogers,, Read my post I've suggested all possible Formula, including the OP's one, regarding ((B1-A1)+1)/365.25. It's really unfortunate to get DOWN VOTE after All !!

              – Rajesh S
              yesterday













            • @ChrisRogers,, this is part of OP,,But often I seen when people are calculating the number of days between 2 dates or age they use the formula B1-A1

              – Rajesh S
              yesterday











            • @ChrisRogers,, considering the Formula OP has written and I've shown in comments ,, my solution has Focused on ALL that and the Suggested one is an improvise version I've shown with my Answer !! =INT((B1-A1)/365)

              – Rajesh S
              yesterday








            • 2





              INT((B1-A1)/365) can provide the wrong result if there is are leap years involved.

              – Chris Rogers
              yesterday














            1












            1








            1







            I wold like to suggest 3 different Formula to Calculate AGE between 2 Dates.



            enter image description here




            1. To get only Years:


            =INT((B1-A1)/365)



            Or,



            =ROUNDDOWN(YEARFRAC(A1, B1, 1), 0)



            Or, you may use TODAY() Function also:



            =ROUNDDOWN(YEARFRAC(A1, TODAY(), 1), 0)





            1. To Get Complete Age in Years, Months and Days use this one.



              =DATEDIF(A1,B1,"Y") & " Years, " & DATEDIF(A1,B1,"YM") & " Months, " & DATEDIF(A1,B1,"MD") & " Days"



            Edited:



            Counting number of days between two Dates is little bit arbitrary. Basically depends on need.




            1. Count number of days, Excluding Start
              Date
              .

            2. Count number of days, Including Start
              Date
              .

            3. Count number of days, Excluding both
              Start & End Date
              .


            enter image description here



            Considering OP's Sample Dates following Formula can be used.



            Formula for situation 1:



            =DATEDIF(B2,B3,"d")



            =DAYS(B3,B2)



            =INT(B3-B2)



            Formula for situation 2:



            =DATEDIF(B2,B3,"d")+1



            =DAYS(B3,B2)+1



            =INT(B3-B2+1)



            Formula for situation 3:



            =DATEDIF(B2,B3,"d")-1



            =DAYS(B3,B2)-1



            =INT(B3-B2-1)



            Adjust Cell references in the Formula as needed.






            share|improve this answer















            I wold like to suggest 3 different Formula to Calculate AGE between 2 Dates.



            enter image description here




            1. To get only Years:


            =INT((B1-A1)/365)



            Or,



            =ROUNDDOWN(YEARFRAC(A1, B1, 1), 0)



            Or, you may use TODAY() Function also:



            =ROUNDDOWN(YEARFRAC(A1, TODAY(), 1), 0)





            1. To Get Complete Age in Years, Months and Days use this one.



              =DATEDIF(A1,B1,"Y") & " Years, " & DATEDIF(A1,B1,"YM") & " Months, " & DATEDIF(A1,B1,"MD") & " Days"



            Edited:



            Counting number of days between two Dates is little bit arbitrary. Basically depends on need.




            1. Count number of days, Excluding Start
              Date
              .

            2. Count number of days, Including Start
              Date
              .

            3. Count number of days, Excluding both
              Start & End Date
              .


            enter image description here



            Considering OP's Sample Dates following Formula can be used.



            Formula for situation 1:



            =DATEDIF(B2,B3,"d")



            =DAYS(B3,B2)



            =INT(B3-B2)



            Formula for situation 2:



            =DATEDIF(B2,B3,"d")+1



            =DAYS(B3,B2)+1



            =INT(B3-B2+1)



            Formula for situation 3:



            =DATEDIF(B2,B3,"d")-1



            =DAYS(B3,B2)-1



            =INT(B3-B2-1)



            Adjust Cell references in the Formula as needed.







            share|improve this answer














            share|improve this answer



            share|improve this answer








            edited 19 hours ago

























            answered yesterday









            Rajesh SRajesh S

            4,2892624




            4,2892624








            • 3





              This is over complicating things and doesn't answer the question (how many days). The OP is not asking number of years or years, months and days.

              – Chris Rogers
              yesterday











            • @ChrisRogers,, Read my post I've suggested all possible Formula, including the OP's one, regarding ((B1-A1)+1)/365.25. It's really unfortunate to get DOWN VOTE after All !!

              – Rajesh S
              yesterday













            • @ChrisRogers,, this is part of OP,,But often I seen when people are calculating the number of days between 2 dates or age they use the formula B1-A1

              – Rajesh S
              yesterday











            • @ChrisRogers,, considering the Formula OP has written and I've shown in comments ,, my solution has Focused on ALL that and the Suggested one is an improvise version I've shown with my Answer !! =INT((B1-A1)/365)

              – Rajesh S
              yesterday








            • 2





              INT((B1-A1)/365) can provide the wrong result if there is are leap years involved.

              – Chris Rogers
              yesterday














            • 3





              This is over complicating things and doesn't answer the question (how many days). The OP is not asking number of years or years, months and days.

              – Chris Rogers
              yesterday











            • @ChrisRogers,, Read my post I've suggested all possible Formula, including the OP's one, regarding ((B1-A1)+1)/365.25. It's really unfortunate to get DOWN VOTE after All !!

              – Rajesh S
              yesterday













            • @ChrisRogers,, this is part of OP,,But often I seen when people are calculating the number of days between 2 dates or age they use the formula B1-A1

              – Rajesh S
              yesterday











            • @ChrisRogers,, considering the Formula OP has written and I've shown in comments ,, my solution has Focused on ALL that and the Suggested one is an improvise version I've shown with my Answer !! =INT((B1-A1)/365)

              – Rajesh S
              yesterday








            • 2





              INT((B1-A1)/365) can provide the wrong result if there is are leap years involved.

              – Chris Rogers
              yesterday








            3




            3





            This is over complicating things and doesn't answer the question (how many days). The OP is not asking number of years or years, months and days.

            – Chris Rogers
            yesterday





            This is over complicating things and doesn't answer the question (how many days). The OP is not asking number of years or years, months and days.

            – Chris Rogers
            yesterday













            @ChrisRogers,, Read my post I've suggested all possible Formula, including the OP's one, regarding ((B1-A1)+1)/365.25. It's really unfortunate to get DOWN VOTE after All !!

            – Rajesh S
            yesterday







            @ChrisRogers,, Read my post I've suggested all possible Formula, including the OP's one, regarding ((B1-A1)+1)/365.25. It's really unfortunate to get DOWN VOTE after All !!

            – Rajesh S
            yesterday















            @ChrisRogers,, this is part of OP,,But often I seen when people are calculating the number of days between 2 dates or age they use the formula B1-A1

            – Rajesh S
            yesterday





            @ChrisRogers,, this is part of OP,,But often I seen when people are calculating the number of days between 2 dates or age they use the formula B1-A1

            – Rajesh S
            yesterday













            @ChrisRogers,, considering the Formula OP has written and I've shown in comments ,, my solution has Focused on ALL that and the Suggested one is an improvise version I've shown with my Answer !! =INT((B1-A1)/365)

            – Rajesh S
            yesterday







            @ChrisRogers,, considering the Formula OP has written and I've shown in comments ,, my solution has Focused on ALL that and the Suggested one is an improvise version I've shown with my Answer !! =INT((B1-A1)/365)

            – Rajesh S
            yesterday






            2




            2





            INT((B1-A1)/365) can provide the wrong result if there is are leap years involved.

            – Chris Rogers
            yesterday





            INT((B1-A1)/365) can provide the wrong result if there is are leap years involved.

            – Chris Rogers
            yesterday


















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