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DennisJung Regular Visitor

## Calculate Days between two dates - only for the current month

Hello!

I need some input and ideas from you, because i try to find a way to calculate the following:

i have a table with the absence of our workers and a date table. I try to calculate the following:

- days of the absence per month

- if one absence goes into the next month, i should be calculated only till the last day of the month

- the rest goes into the next month

- 12 single Measures are ok (for each month?)

The Table looks like this: I already tried a measure for january:

`Januar = IF(Tabelle11[Ende ].[Month] = "January";DATEDIFF(Tabelle11[Start].[Date];Tabelle11[Ende ].[Date];DAY);DATEDIFF(Tabelle11[Start].[Date];ENDOFMONTH(Tabelle11[Start].[Date]);DAY))`

But if a do this for january, the 10 Days into february are not calculated correctly.

1 ACCEPTED SOLUTION

Accepted Solutions
v-ljerr-msft Super Contributor

## Re: Calculate Days between two dates - only for the current month

Hi @DennisJung,

Based on my test, you should be able to follow steps below to get the expected result in your scenario.

1. Add a YearMonth column in your Date table if you don't have it yet.

`YearMonth = YEAR('Date'[Date])*100+MONTH('Date'[Date])`

2. Use the formula below to create a new measure.

```Measure =
VAR firstDayOfMonth =
MIN ( 'Date'[Date] )
VAR lastDayOfMonth =
MAX ( 'Date'[Date] )
RETURN
SUMX (
Table1,
VAR s =
MAX ( Table1[Start], firstDayOfMonth )
VAR e =
MIN ( Table1[End], lastDayOfMonth )
RETURN
IF ( s < e, DATEDIFF ( s-1, e, DAY ) )
)```

3. Show Name column as Rows, YearMonth column as Columns, and the measure as Values on the Matrix visual. Here is the sample pbix file for your reference. Regards

4 REPLIES 4
v-ljerr-msft Super Contributor

## Re: Calculate Days between two dates - only for the current month

Hi @DennisJung,

Based on my test, you should be able to follow steps below to get the expected result in your scenario.

1. Add a YearMonth column in your Date table if you don't have it yet.

`YearMonth = YEAR('Date'[Date])*100+MONTH('Date'[Date])`

2. Use the formula below to create a new measure.

```Measure =
VAR firstDayOfMonth =
MIN ( 'Date'[Date] )
VAR lastDayOfMonth =
MAX ( 'Date'[Date] )
RETURN
SUMX (
Table1,
VAR s =
MAX ( Table1[Start], firstDayOfMonth )
VAR e =
MIN ( Table1[End], lastDayOfMonth )
RETURN
IF ( s < e, DATEDIFF ( s-1, e, DAY ) )
)```

3. Show Name column as Rows, YearMonth column as Columns, and the measure as Values on the Matrix visual. Here is the sample pbix file for your reference. Regards

DennisJung Regular Visitor

## Re: Calculate Days between two dates - only for the current month

Wow, thank you very much!

I found a solution yesterday  by myself, but yours is 10 x better My workaround was to create 3 calculated column for each month and 1 measure per month :/

Thank you!

Highlighted
datanoob Frequent Visitor

## Re: Calculate Days between two dates - only for the current month

Hi, how would your solution for individual days?

datanoob Frequent Visitor

## Re: Calculate Days between two dates - only for the current month

Hi, would your solution work for calculations for days?  YearDay?