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Calendar table can't contain date outside its range

Hello you all. 


I am making a calendar table with the calendar function just like





Then I want to associate to every date in this table the starting date of the week (with weeks starting on Monday) so I add a calculated column with the following DAX code



WeekStart = DATEADD(TabellaDate[Date], 1-WEEKDAY(TabellaDate[Date], 2), Day)



The problem is, this outputs BLANK() for the first rows. Actually, I am pretty certain that I can't in any way write in this table any date that is outside the initial 01/01/2023 - 31/12/2023 range.


Is this the correct behaviour? And if it is, what is the advantage and how can I do what I want to do?

Super User
Super User

pls try this


WeekStart = [Date]-WEEKDAY([Date],2)+1

EndStart = [Date]-WEEKDAY([Date],2)+7


View solution in original post

Super User
Super User

If this post helps, then please consider accepting it as the solution to help other members find it faster, and give a big thumbs up.

Super User
Super User

pls try this


WeekStart = [Date]-WEEKDAY([Date],2)+1

EndStart = [Date]-WEEKDAY([Date],2)+7


It does work. So the culprit is the DATEADD function. In fact, I see it is specified in the documentation that

  • The result table includes only dates that exist in the dates column.


Thank you very much.

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