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Anonymous's avatar
Anonymous
Not applicable
7 years ago

DATEDIFF - Exclude weekends and holidays

Hi Community,    In this particular example, I do not have a relationship with Calendar Table, this needs to be filtered within the same table. Therefore, I would like to get the DATEDIFF between t...
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Anonymous's avatar
Anonymous
Not applicable
7 years ago

Hi  Anonymous  

It worked partially, there is the need of excluding the weekends days, and your calculations are not contemplating the exclusion of the weekends. Can you help me getting there please? 

 

Results with Correct Days column, calculated in excel: 

https://we.tl/t-ca9g4ZTEsz

 

Thanks. 

 

Anonymous's avatar
Anonymous
Not applicable
7 years ago

Please add a calendar table to your data model using the following expression

 

 

Calendar =
CALENDAR ( DATE ( 2017, 1, 1 ), DATE ( 2020, 12, 31 ) )

Change the start date and end dates as necessary.

 

 

Further, please add one calculated column to your calendar table.

DayNumber = WEEKDAY('Calendar'[Date],1)

The '1' in WEEKDAY formula counts Sunday as 1 and Saturday as 7.

 

Now add the following calculated column to your transaction table.

 

Weekends =
CALCULATE (
    COUNTROWS ( 'Calendar' ),
    FILTER (
        'Calendar',
        AND (
            'Calendar'[Date] >= 'Transaction'[Date Demand],
            'Calendar'[Date] <= 'Transaction'[Date Presented]
        )
    ),
    OR ( 'Calendar'[DayNumber] = 1, 'Calendar'[DayNumber] = 7 )
)

In this Weekends formula, I am excluding Sundays and Saturdays using the numbers 1 and 7. 

 

Now you can reduce the number of weekends from the net date difference you have calculated earlier.

 

Also please ensure that none of the weekend dates are appearing in the holidays table. Otherwise, those days will be double counted.

 

  • Anonymous's avatar
    Anonymous
    Not applicable
    7 years ago

    Anonymous unfortunately I cannot have a calendar table here.

    I need to perform all calc within this one table. 

    How can I do this?

  • Anonymous's avatar
    Anonymous
    Not applicable
    4 years ago

    Thanks, this is great but where do I also include this in the original code.

     

    Also if a date start and end date is the same date I still want it in as count as 1 day where the current code is giving a zero.