Column that Calculates Business Days

[jb123]

Hi,

I need to create a column that calculates the business days. I have this working that displays the calendar days in a column and I just need to tweek it to exclude weekends:

Days =
SWITCH (
    TRUE (),
    'Velocity'[DashboardCreationDate] <Velocity[Completed Date] , DATEDIFF ('Velocity'[DashboardCreationDate], 'Velocity'[Completed Date], DAY ),
    'Velocity'[DashboardCreationDate] > 'Velocity'[Completed Date], DATEDIFF ('Velocity'[Completed Date], 'Velocity'[DashboardCreationDate], DAY ) * -1,
    0
)

TIA!!!

[Anonymous · Accepted solution]

@jb123,

Use the following DAX to create date table and check if you get any errors.

Date =
ADDCOLUMNS (
CALENDAR (DATE(2000,1,1), DATE(2025,12,31)),
"DateAsInteger", FORMAT ( [Date], "YYYYMMDD" ),
"Year", YEAR ( [Date] ),
"Monthnumber", FORMAT ( [Date], "MM" ),
"YearMonthnumber", FORMAT ( [Date], "YYYY/MM" ),
"YearMonthShort", FORMAT ( [Date], "YYYY/mmm" ),
"MonthNameShort", FORMAT ( [Date], "mmm" ),
"MonthNameLong", FORMAT ( [Date], "mmmm" ),
"DayOfWeekNumber", WEEKDAY ( [Date] ),
"DayOfWeek", FORMAT ( [Date], "dddd" ),
"DayOfWeekShort", FORMAT ( [Date], "ddd" ),
"Quarter", "Q" & FORMAT ( [Date], "Q" ),
"YearQuarter", FORMAT ( [Date], "YYYY" ) & "/Q" & FORMAT ( [Date], "Q" )

Regards,

[Anonymous]

@jb123,

Firstly, create a date table in Power BI Desktop following the instructions in this blog.

Secondly, create a new column in the date table using the DAX below.

IsWorkDay = SWITCH(WEEKDAY('Date'[Date]),1,0,7,0,1)

Thirdly, create a new column using the following formula in  your original table.

Days excluding Weekends = SWITCH (
    TRUE (),
    'Velocity'[DashboardCreationDate] <Velocity[Completed Date] , CALCULATE(SUM('Date'[IsWorkDay]),DATESBETWEEN('Date'[Date],Velocity[DashboardCreationDate],Velocity[Completed Date] )),
    'Velocity'[DashboardCreationDate] > 'Velocity'[Completed Date],CALCULATE(SUM('Date'[IsWorkDay]),DATESBETWEEN('Date'[Date],Velocity[Completed Date],Velocity[DashboardCreationDate] )) * -1,
    0
)

Regards,

[jb123]

The syntax to create a date table in the blog is incorrect.  If you click on new table from moedling and do a copy and paste of the following:

Date =CALENDAR (DATE(2000;1;1); DATE(2025;12;31))

You get an error saying the syntax is incorrect so i thought ok I should copy and paste all of it so I did a copy and paste of this instead

Date =
ADDCOLUMNS (
CALENDAR (DATE(2000;1;1); DATE(2025;12;31));
"DateAsInteger"; FORMAT ( [Date]; "YYYYMMDD" );
"Year"; YEAR ( [Date] );
"Monthnumber"; FORMAT ( [Date]; "MM" );
"YearMonthnumber"; FORMAT ( [Date]; "YYYY/MM" );
"YearMonthShort"; FORMAT ( [Date]; "YYYY/mmm" );
"MonthNameShort"; FORMAT ( [Date]; "mmm" );
"MonthNameLong"; FORMAT ( [Date]; "mmmm" );
"DayOfWeekNumber"; WEEKDAY ( [Date] );
"DayOfWeek"; FORMAT ( [Date]; "dddd" );
"DayOfWeekShort"; FORMAT ( [Date]; "ddd" );
"Quarter"; "Q" & FORMAT ( [Date]; "Q" );
"YearQuarter"; FORMAT ( [Date]; "YYYY" ) & "/Q" & FORMAT ( [Date]; "Q" )
)

Again I get a syntax error.  The exact error message is "The syntax for ';' is incorrect. (DAX(CALENDAR (DATE(2000;1;1); DATE(2025;12;31))))."

Any suggestions?

[Anonymous · Accepted solution]

@jb123,

Use the following DAX to create date table and check if you get any errors.

Date =
ADDCOLUMNS (
CALENDAR (DATE(2000,1,1), DATE(2025,12,31)),
"DateAsInteger", FORMAT ( [Date], "YYYYMMDD" ),
"Year", YEAR ( [Date] ),
"Monthnumber", FORMAT ( [Date], "MM" ),
"YearMonthnumber", FORMAT ( [Date], "YYYY/MM" ),
"YearMonthShort", FORMAT ( [Date], "YYYY/mmm" ),
"MonthNameShort", FORMAT ( [Date], "mmm" ),
"MonthNameLong", FORMAT ( [Date], "mmmm" ),
"DayOfWeekNumber", WEEKDAY ( [Date] ),
"DayOfWeek", FORMAT ( [Date], "dddd" ),
"DayOfWeekShort", FORMAT ( [Date], "ddd" ),
"Quarter", "Q" & FORMAT ( [Date], "Q" ),
"YearQuarter", FORMAT ( [Date], "YYYY" ) & "/Q" & FORMAT ( [Date], "Q" )

Regards,

[jb123]

One last issue.  In some situations one of the date columns is null.  Is there a way to modify this:

Days excluding Weekends = SWITCH (
    TRUE (),
    'Velocity'[DashboardCreationDate] <Velocity[Completed Date] , CALCULATE(SUM('Date'[IsWorkDay]),DATESBETWEEN('Date'[Date],Velocity[DashboardCreationDate],Velocity[Completed Date] )),
    'Velocity'[DashboardCreationDate] > 'Velocity'[Completed Date],CALCULATE(SUM('Date'[IsWorkDay]),DATESBETWEEN('Date'[Date],Velocity[Completed Date],Velocity[DashboardCreationDate] )) * -1,
    0
)

so that it just puts a null value if one of the values in either column is null?  Right now it lists an odd number for the result in these situations..

TIA

[Anonymous · Accepted solution]

@jb123,

Use the following DAX instead.

Days excluding Weekends = IF(ISBLANK(Velocity[Completed Date])||ISBLANK(Velocity[DashboardCreationDate]),BLANK(),SWITCH (
    TRUE (),
'Velocity'[DashboardCreationDate] <Velocity[Completed Date] , CALCULATE(SUM('Date'[IsWorkDay]),DATESBETWEEN('Date'[Date],Velocity[DashboardCreationDate],Velocity[Completed Date] )),
    'Velocity'[DashboardCreationDate] > 'Velocity'[Completed Date],CALCULATE(SUM('Date'[IsWorkDay]),DATESBETWEEN('Date'[Date],Velocity[Completed Date],Velocity[DashboardCreationDate] )) * -1,
    0
))

Regards,

[jb123]

That did it - thanks again!!!!

[jb123]

You rock!  That works great!!!!!!!!!!!

[jb123]

Thanks I will give this a try and see if I can get it to work.

[MFelix]

Hi @jb123,

From your formula I cannot perceive where you want to take out the bussines days but if you use the WEEKDAY formula you can then exclude the weekday = 1 (Sunday) or 7 (saturday).

Regards,
MFelix