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Anonymous's avatar
Anonymous
Not applicable
5 years ago
Solved

Difference between dates considering only working days

I am having a little challenge counting the right number of days between two dates.

If I use DateDiff function it disregards the fact that there are weekend days in the calendar.

If I use Datesbetween function to count the rows in the Date table filtering out weekend days, it works fine only if start date is less then the end date. 

 

I have a situation where start date can be later than the supposedly end date (bad data, i guess).

 

Is there a work around to count the number of days between two dates (positive or negative) AND count only weekdays?

Need Help
  • v-easonf-msft's avatar
    v-easonf-msft
    5 years ago

    Hi， Anonymous 

    You need to created  calculated column Is_WorkDay =1 or 0 to indicate if its a workday  or not in your calendar table. 

    Is_workday = IF( NOT WEEKDAY('Calendar'[Date],2)   in {6,7},1,0)

    To avoid the situation where the start date is greater than the end date，you can create a calculated column as below in you fact table (here we set two variables "max1"  and "min1" to get the date in the table)

    _Workdays = 
VAR max1 =
    MAX ( 'Table'[StartDate], 'Table'[EndDate] )
VAR min1 =
    MIN ( 'Table'[StartDate], 'Table'[EndDate] )
RETURN
    CALCULATE (
        SUM ( 'Calendar'[Is_workday] ),
        ALL ( 'Calendar' ),
        DATESBETWEEN ( 'Calendar'[Date], min1, max1 )
    )

     

    Best Regards,
    Community Support Team _ Eason

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