Data validation allow weekday only

Data validation allow weekday only

Generic formula 

=WEEKDAY(A1,2)<6

Related formulas 

Data validation only dates between

Data validation date in next 30 days

Data validation date in specific year

Data validation allow numbers only

Data validation allow text only

Explanation

Note: Excel has several built-in data validation rules for dates. This page explains how to create a your own validation rule based on a custom formula if you need more control or flexibility.

To allow a user to enter only dates that are weekdays (i.e. Monday, Tuesday, Wednesday, etc.) you can use data validation with a custom formula based on the WEEKDAY function.

In the example shown, the data validation applied to C5:C7 is:

=WEEKDAY(C5,2)<6

How this formula works

Data validation rules are triggered when a user adds or changes a cell value.

This custom validation formula uses the WEEKDAY function to get a numeric value, 1-7, corresponding to to a week beginning Monday (1) and ending Sunday (7). To get a number for a Monday-based week, the return_type argument for WEEKDAY is provided as 2.

The WEEKDAY result is then compared to 6. Any value less than 6 is a weekday, so the expression returns TRUE and validation succeeds. If the weekday number is not less than 6, validation fails because the date is a Saturday or Sunday.

Date is weekend

To allow only dates that occur on a weekend (Saturday or Sunday), you can use a similar formula:

=WEEKDAY(C5,2)>5

Note: Cell references in data validation formulas are relative to the upper left cell in the range selected when the validation rule is defined, in this case C5.

Data validation allow weekday only

Generic formula 

=WEEKDAY(A1,2)<6

Related formulas 

Data validation only dates between

Data validation date in next 30 days

Data validation date in specific year

Data validation allow numbers only

Data validation allow text only

Explanation

Note: Excel has several built-in data validation rules for dates. This page explains how to create a your own validation rule based on a custom formula if you need more control or flexibility.

To allow a user to enter only dates that are weekdays (i.e. Monday, Tuesday, Wednesday, etc.) you can use data validation with a custom formula based on the WEEKDAY function.

In the example shown, the data validation applied to C5:C7 is:

=WEEKDAY(C5,2)<6

How this formula works

Data validation rules are triggered when a user adds or changes a cell value.

This custom validation formula uses the WEEKDAY function to get a numeric value, 1-7, corresponding to to a week beginning Monday (1) and ending Sunday (7). To get a number for a Monday-based week, the return_type argument for WEEKDAY is provided as 2.

The WEEKDAY result is then compared to 6. Any value less than 6 is a weekday, so the expression returns TRUE and validation succeeds. If the weekday number is not less than 6, validation fails because the date is a Saturday or Sunday.

Date is weekend

To allow only dates that occur on a weekend (Saturday or Sunday), you can use a similar formula:

=WEEKDAY(C5,2)>5

Note: Cell references in data validation formulas are relative to the upper left cell in the range selected when the validation rule is defined, in this case C5.