Calendar - Week number has incorrect start date

Hello Team,

Hope you are fine.

I am trying to add a week number in my calendar using the below:

Calendar = ADDCOLUMNS(CALENDAR(Date(2021,10,01), date(2030,12,31))

,"Month Year", Format([Date], "MMM-YYYY")

,"Month Year sort", Format([Date], "YYYYMM")

,"Year", Year([Date])

,"YYYY-WK", FORMAT([Date],"YYYY-WW")

,"Qtr Year", Format([Date],"YYYY\QQ"))

 

However, the start date for the week is incorrect as it starts on a Sunday:

 

 

Do you have an idea on how to resolve it?

 

Thank you.

 

Kind Regards,