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Helper I

## How to find days between two dates for each month of a year?

Hello,

I have data that currently exist in this format:

 Project Start Date End Date 1 15-Jan-2022 20-Feb-2022 2 10-Jan-2022 25-Mar-2022 3 15-Feb-2022 20-Jun-2022

My user is interested in looking at Number of Days between Start and End Date by Month for each Year. How can we achieve the below  output using formulas or any other approch:

 S.No Start Date End Date Jan-22 Feb-22 Mar-22 Apr-22 May-22 Jun-22 1 15-Jan-2022 20-Feb-2022 16 20 2 10-Jan-2022 25-Mar-2022 21 29 25 3 15-Feb-2022 20-Jun-2022 14 31 30 31 20

Any ideas on how to do this on a Sharepoint List, Power App or eventually Power BI?

Many thanks in advance !

C

1 ACCEPTED SOLUTION

Accepted Solutions
Super User
``````ClearCollect(
RangeBreakdownTotals,
GroupBy(
Ungroup(
ForAll(

DateRangeRequest,

With({startDate:ThisRecord.Start,
sequenceDays: Sequence(DateDiff(ThisRecord.Start,
ThisRecord.End) + 1)
},
"Date",
DateAdd(startDate, Value - 1, Days),
"Month",Month(DateAdd(startDate, Value - 1, Days)),
"MonthYear",Concatenate(Month(DateAdd(startDate, Value - 1, Days)),Year(DateAdd(startDate, Value - 1, Days)))
///"Month",Concatenate(Month(DateAdd(startDate, Value - 1, Days)),Year(DateAdd(startDate, Value - 1, Days)))
)

)),"Value"

///),"Month","MonthDates"
),"MonthYear","MonthYearDates"
),"DaysThisMonth",CountRows(ThisRecord.MonthYearDates)
))

``````
_____________________________________________________________________________________
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6 REPLIES 6
Super User

You can do this in Power BI using the solution here. You end up with this table, which I added a '+1' to the formula to include EndDate in the count:

``````CountInDateRange =
VAR StartDate = VALUE( SELECTEDVALUE( ProjectData[Start Date ] ) )
VAR EndDate = VALUE( SELECTEDVALUE( ProjectData[End Date] ) )
VAR MinDateInContext = VALUE( MIN( Dates[Date] ) )
VAR MaxDateInContext = VALUE( MAX( Dates[Date] ) )

RETURN
IF( AND( StartDate < MinDateInContext, EndDate > MinDateInContext ),
MIN( EndDate, MaxDateInContext ) - MinDateInContext + 1,
IF( AND( AND( StartDate > MinDateInContext, StartDate < MaxDateInContext ), EndDate > MinDateInContext ),
MIN( EndDate, MaxDateInContext + 1 ) - StartDate ,
Blank() ) )
``````

To set this up you need the data similar to that you supplied above in a table called ProjectData and a date table called Dates with a column named [Date] with all dates in the range that you wish to count against. If you are not familiar with setting up a date table there are plenty of examples via Google, with code you can copy and paste. You don't need to setup a relationship between the Date table and the ProjectData table.

In PowerApps, you could solve this using the Sequence() function, however, the dynamic nature of your Year/Month columns would prove difficult to achieve - not impossible though

Super User

Ok so the following code, placed anywhere it can be triggered to run (In my case I placed it in the OnSelect of a button), will cycle through a set of start and end dates (In my example it is going through a collection that currently has 3 sets of start and end dates, the third of which starts in July and ends in September just to see if 3 months would break it)

This formula returns a collection with the following columns

Month: This is the number of the month, can change it in formula to be text value of month if needed, or just anywhere you display it, convert on the control it's being displayed on

DaysThisMonth: Total count of days requested off in that month

MonthDates: Nested table that includes every day selected for the request in that specific month.

``````ClearCollect(
RangeBreakdownTotals,
GroupBy(
Ungroup(
ForAll(

DateRangeRequest,

With({startDate:ThisRecord.Start,
sequenceDays: Sequence(DateDiff(ThisRecord.Start,
ThisRecord.End) + 1)
},
"Date",
DateAdd(startDate, Value - 1, Days),
"Month",Month(DateAdd(startDate, Value - 1, Days))
)

)),"Value"

),"Month","MonthDates"
),"DaysThisMonth",CountRows(ThisRecord.MonthDates)
))``````

_____________________________________________________________________________________
Like my answer? - Hit that Thumbs Up. Resolved the Issue? - Hit Accept as Solution.
This helps others find solutions to future issues!
Helper I

Hello The RobRush,

Amazing formula !

The formula works well thank you, however I will need to have the Years as well  because for the moment if I have some days in march 2022 and some days in march 2023, it sum up all March days.

The idea is to be able to multiply the number of days with a specific number of hours so I got the workload in hours per months of the year per project.

Best regards,

Capucine

Super User
``````ClearCollect(
RangeBreakdownTotals,
GroupBy(
Ungroup(
ForAll(

DateRangeRequest,

With({startDate:ThisRecord.Start,
sequenceDays: Sequence(DateDiff(ThisRecord.Start,
ThisRecord.End) + 1)
},
"Date",
DateAdd(startDate, Value - 1, Days),
"Month",Month(DateAdd(startDate, Value - 1, Days)),
"MonthYear",Concatenate(Month(DateAdd(startDate, Value - 1, Days)),Year(DateAdd(startDate, Value - 1, Days)))
///"Month",Concatenate(Month(DateAdd(startDate, Value - 1, Days)),Year(DateAdd(startDate, Value - 1, Days)))
)

)),"Value"

///),"Month","MonthDates"
),"MonthYear","MonthYearDates"
),"DaysThisMonth",CountRows(ThisRecord.MonthYearDates)
))

``````
_____________________________________________________________________________________
Like my answer? - Hit that Thumbs Up. Resolved the Issue? - Hit Accept as Solution.
This helps others find solutions to future issues!
Helper I

@TheRobRush  Many many thanks for your help!

Frequent Visitor

Hi,

can you give the crux of the solution please,

it's totally confusing to read🙂

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