Count months between date values using YEAR as criteria

S

Shallabee

New Member
Joined
Jan 31, 2018
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4
Hi,


I need to count number of months that occur over a specific date range that fall in a specified year and the date ranges could be 1.1.2016 to 1.10.2017 and i'm only interested in months that occur in 2017, also the date formats used in the raw data spreadsheet source are typically in the format yyyy mm (2016 10), and typically get a number of entries that have a start of say 2017 10 and end date 2017 10 which should equal 1 month. example below.


Start Date Endate Duration 2017 MTH COUNT
2015 10 2018 09 36 12
2017 07 2017 07 1 1
2017 01 2017 12 12 12
2017 07 2017 09 3 3
2017 04 2017 04 1 1
2017 02 2017 12 11 11
2017 09 2017 12 4 4
2017 06 2020 05 36 12
2017 12 2017 12 1 1
2015 05 2017 04 24 4
2017 03 2017 03 1 1
2015 04 2017 04 25 4
2017 11 2017 11 1 1
2017 11 2017 11 1 1
2017 08 2018 07 12 5
2017 10 2017 10 1 1
2017 09 2017 09 1 1
2017 07 2018 06 12 6


There is another part to this calculation where the number of months are multiplied by a unit value, but have managed to crack that one... any help would be appreciated.
 

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=DATEDIF(MAX(A2,DATE(2017,1,1)),MIN(B2,DATE(2017,12,31)),"ym")+1
 
Upvote 0
[TABLE="width: 1045"]
<colgroup><col span="2"><col span="6"><col><col span="7"></colgroup><tbody>[TR]
[TD="align: right"]04/03/2016[/TD]
[TD="align: right"]2016 03[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
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[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]07/04/2016[/TD]
[TD="align: right"]2016 04[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
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[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]11/05/2016[/TD]
[TD="align: right"]2016 05[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
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[TD][/TD]
[TD][/TD]
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[/TR]
[TR]
[TD="align: right"]14/06/2016[/TD]
[TD="align: right"]2016 06[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
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[TD][/TD]
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[/TR]
[TR]
[TD="align: right"]18/07/2016[/TD]
[TD="align: right"]2016 07[/TD]
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[TD][/TD]
[TD][/TD]
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[TD][/TD]
[TD][/TD]
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[/TR]
[TR]
[TD="align: right"]21/08/2016[/TD]
[TD="align: right"]2016 08[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
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[TD][/TD]
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[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]24/09/2016[/TD]
[TD="align: right"]2016 09[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
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[/TR]
[TR]
[TD="align: right"]28/10/2016[/TD]
[TD="align: right"]2016 10[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD="colspan: 4"]say you want march to august in 2017[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]01/12/2016[/TD]
[TD="align: right"]2016 12[/TD]
[TD][/TD]
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[/TR]
[TR]
[TD="align: right"]04/01/2017[/TD]
[TD="align: right"]2017 01[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]start date[/TD]
[TD="align: right"]01/03/2017[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]07/02/2017[/TD]
[TD="align: right"]2017 02[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]end date[/TD]
[TD="align: right"]31/08/2017[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]13/03/2017[/TD]
[TD="align: right"]2017 03[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
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[/TR]
[TR]
[TD="align: right"]16/04/2017[/TD]
[TD="align: right"]2017 04[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
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[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]20/05/2017[/TD]
[TD="align: right"]2017 05[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD="colspan: 3"]the formula works with col B[/TD]
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[/TR]
[TR]
[TD="align: right"]23/06/2017[/TD]
[TD="align: right"]2017 06[/TD]
[TD][/TD]
[TD][/TD]
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[TD][/TD]
[TD][/TD]
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[/TR]
[TR]
[TD="align: right"]27/07/2017[/TD]
[TD="align: right"]2017 07[/TD]
[TD][/TD]
[TD][/TD]
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[/TR]
[TR]
[TD="align: right"]30/08/2017[/TD]
[TD="align: right"]2017 08[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]count[/TD]
[TD][/TD]
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[/TR]
[TR]
[TD="align: right"]03/10/2017[/TD]
[TD="align: right"]2017 10[/TD]
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[/TR]
[TR]
[TD="align: right"]06/11/2017[/TD]
[TD="align: right"]2017 11[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD]6[/TD]
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[/TR]
[TR]
[TD="align: right"]10/12/2017[/TD]
[TD="align: right"]2017 12[/TD]
[TD][/TD]
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[/TR]
[TR]
[TD="align: right"]13/01/2018[/TD]
[TD="align: right"]2018 01[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD="colspan: 5"]=SUMPRODUCT((B1:B22>=$I$10)*(B1:B22<=$I$11)*1)[/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[TD][/TD]
[/TR]
[TR]
[TD="align: right"]16/02/2018[/TD]
[TD="align: right"]2018 02[/TD]
[TD][/TD]
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</tbody>[/TABLE]
 
Upvote 0
footoo said:
=DATEDIF(MAX(A2,DATE(2017,1,1)),MIN(B2,DATE(2017,12,31)),"ym")+1
Click to expand...

Thanks, but this formula seems to always return a value of 12 regardless of the cell start and end dates.

Start Date End Date Count of Months

2017 01 2017 01 1
2017 07 2018 06 6
2015 10 2018 09 12

Numbers should correspond to count of months column.
 
Upvote 0
It works for me. Do you have dates in A2 and B2 ?
 
Upvote 0
I changed the cell references to the start and end month cells on my source sheet and still get a constant 12, have tried in both mac and pc versions and same result?
 
Upvote 0
How are the cells formatted ? As dates or as text?
The formula will only work if the cells in columns A and B are dates.
If they are text (or blank), the formula will return 12.
 
Upvote 0
Thanks, did eventually get this to work, it looks like it was a formatting issue as the yyyy mm format would not work properly, but when i formatted the date values to dd/mm/yyyy it all worked... Excellent...
 
Upvote 0
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