Excel

WEEKDAY function doesn’t work in Microsoft Excel

Experiencing issues with the WEEKDAY function not working in Microsoft Excel can be frustrating. However, rest assured that the solution is often straightforward. Understanding the potential causes and fixes can save you time and enhance your Excel skills.

Key Takeaways

  • The WEEKDAY function calculates the day of the week for a given date.
  • Common issues often relate to date formats, cell references, or function syntax.
  • Solutions are typically easy to implement, even for beginners.

Common Solutions

1. Check Date Format

Ensure that the date you are entering is in the correct format. Excel recognizes dates only when they follow specific formats. To check:

  • Click on the cell containing the date.
  • Look at the Home tab and select Number Format.
  • Ensure it is set to Date.

2. Review Function Syntax

The syntax for the WEEKDAY function is:

WEEKDAY(serial_number, [return_type])

  • serial_number: This is the date you want to evaluate.
  • [return_type]: This is optional and determines the format of output.

Check that you are using the correct syntax. For example:

=WEEKDAY(A1)

3. Verify Cell References

Make sure that the cell containing the date is correctly referenced. Errors can occur if:

  • The reference is to an empty cell.
  • The cell does not contain a valid date.

Rare Solutions

4. cell formatting Issues

If a cell’s formatting is set to text, Excel may not recognize it as a date.

  • Right-click on the cell.
  • Select Format Cells and choose Date.
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5. Update Excel

Sometimes, a glitch in the software may cause functions to misbehave. Update Excel to the latest version.

  • Go to File > Account > Update Options > Update Now.

6. Repair Excel

If nothing works, consider repairing the Excel application.

  • Open Control Panel > Programs > Programs and Features.
  • Right-click on Microsoft Office and choose Change > Repair.

FAQ

Q: What does the WEEKDAY function return?
A: The WEEKDAY function typically returns a number representing the day of the week. Depending on the chosen return_type, it could return 1 for Sunday or 2 for Monday.

Q: Can the WEEKDAY function return a string?
A: No, the WEEKDAY function only returns numeric values. To convert numbers to strings (like “Monday”), A different formula or additional functions are needed.

Q: What if Excel still shows an error after fixing all issues?
A: If you continue to face issues, check for updates or try using the function on a new sheet. If problems persist, consider reaching out to Microsoft support.

Conclusion

The most likely solution for the WEEKDAY function not working involves ensuring the cells contain valid date formats. If you’ve tried the solutions above and still encounter issues, please leave a comment for further assistance.

About the author

Jeffrey Collins

Jeffrey Collins

Jeffery Collins is a Microsoft Office specialist with over 15 years of experience in teaching, training, and business consulting. He has guided thousands of students and professionals in mastering Office applications such as Excel, Word, PowerPoint, and Outlook. From advanced Excel functions and VBA automation to professional Word formatting, data-driven PowerPoint presentations, and efficient email management in Outlook, Jeffery is passionate about making Office tools practical and accessible. On Softwers, he shares step-by-step guides, troubleshooting tips, and expert insights to help users unlock the full potential of Microsoft Office.