WEEKDAY DAX Function (Date and Time)
Returns a number identifying the day of the week of a date. The number is in a range 1-7 or 0-6 according to the choice of the ReturnType parameter.
Syntax
| Parameter | Attributes | Description | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Date |
A date in datetime format. |
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| ReturnType | Optional |
A number that determines the return value:
|
Return values
An integer number in a range 1-7 or 0-6 according to the choice of the ReturnType parameter.
Remarks
If the argument is a string, it is translated into a datetime value using the same rules applied by the DATEVALUE function.
» 2 related functions
Examples
-- WEEKDAY returns the day of the week using different standards
EVALUATE
ADDCOLUMNS (
TOPN ( 10, VALUES ( 'Date'[Date] ), 'Date'[Date], ASC ),
"Day of week", FORMAT ( 'Date'[Date], "dddd" ),
"Weekday", WEEKDAY ( 'Date'[Date] ), -- 1 is Sunday (Default)
"Weekday 1", WEEKDAY ( 'Date'[Date], 1 ), -- 1 is Sunday
"Weekday 2", WEEKDAY ( 'Date'[Date], 2 ), -- 1 is Monday
"Weekday 3", WEEKDAY ( 'Date'[Date], 3 ), -- 0 is Monday
"Weekday 11", WEEKDAY ( 'Date'[Date], 11 ), -- 1 is Monday
"Weekday 12", WEEKDAY ( 'Date'[Date], 12 ), -- 1 is Tuesday
"Weekday 13", WEEKDAY ( 'Date'[Date], 13 ), -- 1 is Wednesday
"Weekday 14", WEEKDAY ( 'Date'[Date], 14 ) -- ...
)
ORDER BY [Date]
| Date | Day of week | Weekday | Weekday 1 | Weekday 2 | Weekday 3 | Weekday 11 | Weekday 12 | Weekday 13 | Weekday 14 |
|---|---|---|---|---|---|---|---|---|---|
| 2005-01-01 | Saturday | 7 | 7 | 6 | 5 | 6 | 5 | 4 | 3 |
| 2005-01-02 | Sunday | 1 | 1 | 7 | 6 | 7 | 6 | 5 | 4 |
| 2005-01-03 | Monday | 2 | 2 | 1 | 0 | 1 | 7 | 6 | 5 |
| 2005-01-04 | Tuesday | 3 | 3 | 2 | 1 | 2 | 1 | 7 | 6 |
| 2005-01-05 | Wednesday | 4 | 4 | 3 | 2 | 3 | 2 | 1 | 7 |
| 2005-01-06 | Thursday | 5 | 5 | 4 | 3 | 4 | 3 | 2 | 1 |
| 2005-01-07 | Friday | 6 | 6 | 5 | 4 | 5 | 4 | 3 | 2 |
| 2005-01-08 | Saturday | 7 | 7 | 6 | 5 | 6 | 5 | 4 | 3 |
| 2005-01-09 | Sunday | 1 | 1 | 7 | 6 | 7 | 6 | 5 | 4 |
| 2005-01-10 | Monday | 2 | 2 | 1 | 0 | 1 | 7 | 6 | 5 |
Related articles
Learn more about WEEKDAY in the following articles:
-
Counting working days in DAX
This article shows a DAX technique to compute the number of working days between two dates. » Read more
Related functions
Other related functions are:
Last update: Nov 5, 2025 » Contribute » Show contributors
Contributors: Alberto Ferrari, Marco Russo
Microsoft documentation: https://docs.microsoft.com/en-us/dax/weekday-function-dax