Formula to return number of remaining days between two dates ignoring the number of three month periods

[angel34]

<!--[if gte mso 9]><xml> <o:OfficeDocumentSettings> <o:RelyOnVML/> <o:AllowPNG/> </o:OfficeDocumentSettings> </xml><![endif]--> [FONT=&quot]I was wondering if there is a formula in excel which returns the number of remaining days between 2 dates, ignoring the number of three month periods. Three month period need not be a standard calendar quarter i.e. from 1^st Jan to 31^st March. It can also be from 2^nd Feb to 1^st of May.[/FONT]
[FONT=&quot] [/FONT] [FONT=&quot]For example, if the 2 dates in A1 and B1 are 5/26/2016 and 10/30/2017, then starting from 5/26/2016, the last three month period (5^th one) would end on 8/25/2017. The remaining days up to 10/30/2017 from 8/25/2017 would be 66 days which I need the formula to return in C1[/FONT] [FONT=&quot] [/FONT] [FONT=&quot]Any help in this regard is much appreciated. Thanks and regards,[/FONT]
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[angel34]

Hello angel34,

Try this formula

=B1-EDATE(A1,FLOOR(DATEDIF(A1,B1+1,"m"),3))+1

Format result cell as number

This works like a charm on all my data sets and is the solution I was looking for. Thanks a trillion. I convey my heartfelt thanks to all who have spared their valueable time to lend thought to such trivial problem.

 

[angel34]

It works perfectly now. Thank you very much for your kind help. I trust the -1 preceding <=B1 did the trick.

 

[angel34]

Hi ,

Barry's gives the results you want , I think.

Recheck your results with his , as well as this :

=B1 - MAX(IF(EDATE(A1, {0,1,2,3,4,5,6,7,8,9,10}*3) - 1 <= B1, EDATE(A1, {0,1,2,3,4,5,6,7,8,9,10}*3))) + 1

The above is an array formula , to be entered using CTRL SHIFT ENTER.

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