In Access, the Weekday function returns an integer between 1 (Sunday) and 7 (Saturday) that represents the day of the week corresponding to the date and the first day of the week provided as arguments.

The syntax for the Weekday function is:

Weekday ( date, [firstdayofweek] )

The argument date is any numeric expression that can represent a date and/or time. Numbers to the left of the decimal point in date represent the date; numbers to the right represent the time. If date is Null, this function returns a Null. The firstweekday argument is an optional integer argument that specifies the first day of the week. The following is a list of valid parameters for firstweekday.

Constant	Value	Description
vbUseSystem	0	Use the NLS API settings
vbSunday	1	Sunday (default used)
vbMonday	2	Monday
vbTuesday	3	Tuesday
vbWednesday	4	Wednesday
vbThursday	5	Thursday
vbFriday	6	Friday
vbSaturday	7	Saturday

Examples

Weekday (#17/07/2005#,vbSunday)      returns 1 Weekday (#17/07/2005#,4)             returns 5 Weekday (#17/07/2005#)               returns 1

VBA Code

Dim MyWeekday As Integer  MyWeekday = Weekday(#04/12/1997#,4)

This example uses the Weekday function to obtain the day of the week from a specified date. Now the MyWeekday variable would contain the value of 4.

SQL query

You can also use the Weekday function in a query.

SELECT Weekday(#14/02/2005#,1) AS Expr1 FROM Orders