WEEKDAY

Excel Functions

Get the day of the week as a number

Syntax

EXCEL

=WEEKDAY(serial_number, [return_type])

Arguments

Parameter	Description
`serial_number`	The date for which you want to get the day of week.
`return_type`	[optional] A number representing day of week mapping scheme. Default is 1.

Return Value

A number between 0 and 7.

Details

The WEEKDAY function takes a date and returns a number between 1-7 representing the day of the week. The WEEKDAY function takes two arguments: serial_number and return_type. Serial_number should be a valid Excel date in serial number format. Return_type is an optional numeric code that controls which day of the week is considered the first day. By default, WEEKDAY returns 1 for Sunday and 7 for Saturday, as seen in the table below: WEEKDAY supports several numbering schemes, controlled by the return_type argument. Return_type is optional and defaults to 1. The table below shows available return_type codes, the numeric result of each code, and which day is the first day in the mapping scheme. Note: the WEEKDAY function will return a value even when the date is empty. Take care to trap this

Examples

By default and without a value fore return_type, WEEKDAY starts counting on Sunday:

EXCEL

=WEEKDAY("3-Jan-21") // Sunday, returns 1
=WEEKDAY("4-Jan-21") // Monday, returns 2

Examples

To configure WEEKDAY to start on Monday, set return_type to 2*:*

EXCEL

=WEEKDAY("3-Jan-21",2) // Sunday, returns 7
=WEEKDAY("4-Jan-21",2) // Monday, returns 1

Examples

In the example shown above, the formula in D5 (copied down) is:

EXCEL

=WEEKDAY(B5) // Sunday start

Examples

The formula in E5 (copied down) is:

EXCEL

=WEEKDAY(B5,2) // Monday start