Home > Formulas > Date > Weekend Dates Weekend Dates in ExcelExamples show how to work with weekend dates in Microsoft Excel. Highlight rows with weekend dates, prevent or allow entry of weekend dates. Find project start and end dates, with no weekend days. Excel weekend formula to find Saturday and Sunday or different days for weekends. Author: Debra Dalgleish 
Get Weekday NumberFor most of the examples below, formulas use the Excel WEEKDAY function, to check if a date falls on a weekend. The WEEKDAY function has one required argument in its syntax:
Based on that serial number, WEEKDAY returns a number, for the date's day of the week. For example, in the screen shot below, there's a date in cell B4
So, if we want to highlight weekend dates, or prevent them from being entered in a cell, we can check for specific weekday numbers, such as 1 and 7 
WEEKDAY NumberingAlthough the default numbering for the WEEKDAY function goes from Sunday (1) to Saturday (7), you can tell Excel to use a different numbering system. To specify a different numbering system, use the WEEKDAY function second argument, which is optional:
Don't worry though  you don't have to memorize those option numbers! The list of return type numbers will automatically appear, if you type a comma after the first argument. Return_Type NotesHere are a couple of things to keep in mind, when using the WEEKDAY function

Identify Weekend DatesIf you want to identify weekend dates that are Saturday and Sunday, the quickest solution is to use return_type 2.
For Saturday and Sunday weekends, return_type 2 has the following advantages over the other options:

Saturday and Sunday ExampleIn the example shown below, the formula in column D uses 2 as its Return Type, so Days are numbered Monday (1) to Sunday (7). The WEEKDAY function checks the date in column B The weekday number is tested, with the greater than operator (>) to see if it is greater than 5
The result of that formula will be TRUE, if the weekday is a Saturday (6) or a Sunday (7) In the screen shot below, the last two dates fall on weekend dates, so the formulas in cells D6 and D7 have TRUE as their result. 
Other Weekend Days ExampleMany businesses are closed on days that are NOT Saturday and Sunday, so the formula shown above will not identify their weekend dates. For example,
To identify weekend dates that are NOT Saturday and Sunday, you can create a formula with two WEEKDAY tests in it, instead of one test. Other Days Example  Monday & TuesdayIn the example shown below, a business is closed on Monday and Tuesday. The WEEKDAY formula will check if a date falls on either of those days of the week. On the worksheet, there's a date entered in cell B3. The WEEKDAY formula is in cell C5.

Adapt Formula for Different DaysYou could adapt the formula, shown above, for any other days of the week For example, use this formula if your business is closed Thursday (5) and Friday (6):
Or, maybe you work a 4day week, and are closed Saturday (7), Sunday (1) and Monday (2).
Find the weekdays, and their default numbers, in the list shown below. Then, use those numbers in the WEEKDAY formula, along with the OR function. 
Highlight Weekend DatesFor some data analysis, it might help if you highlight the rows where dates fall on a weekend. For example, in a list of daily sales numbers, colour the weekend rows, so they're easy to spot. That breaks the data into weekly "chunks", so it's easier to read and understand. This video shows how to highlight the weekend dates with conditional formatting, using a rule with the WEEKDAY function. There are written steps below the video Highlight Weekend DatesIn this example, the Excel file has a list with dates, and product sales numbers. In the steps below, you'll see how to highlight rows where the dates fall on a weekend. You'll set up a conditional formatting rule, using the WEEKDAY function. Add Conditional FormattingTo set up the conditional formatting for weekend dates, follow these steps

Create the RuleNext, follow these steps to create the weekend highlight rule:

Weekend Date HighlightedOn the worksheet, the rows with weekend dates in column A are highlighted, with the fill colour that you selected  light green fill colour in the screen shot below. With the green highlighting, it's easy to see the weekend sales data. Also, it's clear where each week begins and ends. 
Block Weekend DatesThe Excel data validation feature lets you set rules for what can be entered in a worksheet cell. To block people from entering weekend dates, create a data validation rule that uses the WEEKDAY function, as shown in the steps below. For this rule, the example uses WEEKDAY with return_type 2 as the optional second argument.

Add Data Validation RuleFor this rule, we will allow dates that are NOT weekend dates. So, instead of checking if the weekday number is greater than 5, the rule will check for numbers LESS THAN 6 (Saturday) Set Up Data Validation RuleTo set up the data validation rule in cell B2, follow these steps:

Add Error Message (Optional)Instead of showing a default error message, if someone enters an invalid date, you can add a custom error message. To set that up, follow these steps:
Test the Data ValidationClick the OK button, to apply the data validation rule to the selected cell 
Project Task Start and End DatesIn the video below, the WORKDAY function is used in column C, to calculate start and end dates for project tasks. Weekend dates are not included in the project, and the WORKDAY function does not count those days. Find Task Start DatesThis is the formula in cell C6, to calculate the start date for the first task, based on the deadline date, and the number of days work required:
Make a Gantt ChartNext, a simple Gantt chart is created from those task start dates, that the WORKDAY function calculated. The written steps, and the sample file for this video, are on the Excel Gantt Chart Project Plan page. 
Download Sample FileWeekend Date Examples: To see how examples from this page, download the sample Weekend Date Examples workbook. The zipped Excel file is in xlsx format, and does not contain any macros. 
More TutorialsDate Formula Examples  Use formulas to find month name, weekday number, month star or end date. Many more examples. WORKDAY Function Examples Calculate project dates or upcoming workdays in Excel with WORKDAY function and WORKDAY.INTL function. Excel Split Date and Time  Get Date or Time value from cell with simple Excel formulas or builtin commands 
Last updated: July 8, 2023 1:52 PM