How to Change Date Format in Excel from DD/MM/YYYY to MM/DD/YYYY: A Guide

Changing the date format in Excel from dd/mm/yyyy to mm/dd/yyyy is a straightforward task that involves a few simple steps in the program’s settings. By adjusting the date format, you can ensure your data is presented in a way that fits your needs or is compatible with other software. This guide will walk you through the process step-by-step.

How to Change Date Format in Excel from dd/mm/yyyy to mm/dd/yyyy

Changing the date format in Excel will help you present your data in the desired format. Here’s how you can do it:

Step 1: Open your Excel file

Open the Excel file containing the dates you want to change.

Before you can start changing the date format, you must have the Excel file open. Ensure you’re working in the correct file to avoid making unnecessary changes in other documents.

Step 2: Select the cells with dates

Highlight the cells containing the dates you want to change.

Click and drag to select the range of cells with the dates you need to reformat. You can also click on individual cells while holding down the Ctrl key to select them one by one.

Step 3: Right-click and choose "Format Cells"

Right-click on the selected cells and choose "Format Cells" from the context menu.

A dialog box will appear with various formatting options. This is where you can change the appearance of your data, including the date format.

Step 4: Go to the "Number" tab

In the "Format Cells" dialog box, go to the "Number" tab.

The "Number" tab hosts different categories for formatting your data. You need to be here to proceed with changing the date format.

Step 5: Select "Custom" from the list

Under the "Category" list on the left, select "Custom."

Choosing "Custom" allows you to define a specific date format that isn’t available in the standard list.

Step 6: Enter the new date format

In the "Type" field, enter mm/dd/yyyy and click "OK."

Type your desired date format directly into the field. Make sure to use mm/dd/yyyy, which instructs Excel to display dates in the month/day/year format.

After completing these steps, your dates should now be displayed in the mm/dd/yyyy format.

Tips for Changing Date Format in Excel from dd/mm/yyyy to mm/dd/yyyy

  • Double-Check for Errors: Ensure that all dates are recognized as dates by Excel; otherwise, they won’t change format properly.
  • Use Shortcuts: You can use the keyboard shortcut Ctrl + 1 to quickly open the "Format Cells" dialog box.
  • Preview Changes: Before clicking "OK," check the "Sample" field to see a preview of your new date format.
  • Apply to Entire Column: Click the column header to select the entire column if you need to change the format for a lot of dates.
  • Save Your Work: Always save your document after making changes to avoid losing your work.

Frequently Asked Questions

Why don’t my dates change format?

This often happens if Excel doesn’t recognize your data as dates. Ensure your cells are formatted as dates before trying to change the format.

Can I change the date format for an entire column?

Yes, simply click on the column header to select the entire column and then follow the steps above to change the date format.

What if I need a different date format, like yyyy/mm/dd?

You can enter any custom date format in the "Type" field within the "Custom" category.

Does this change affect data sorting?

Yes, changing the date format can affect how data is sorted if it’s based on the date. Ensure your dates are in the correct format before sorting.

Can I revert back to the original date format?

Yes, simply follow the same steps and enter the original format (dd/mm/yyyy) in the "Type" field.


  1. Open your Excel file.
  2. Select the cells with dates.
  3. Right-click and choose "Format Cells."
  4. Go to the "Number" tab.
  5. Select "Custom" from the list.
  6. Enter the new date format.


Changing the date format in Excel from dd/mm/yyyy to mm/dd/yyyy is a quick and easy process that can significantly improve the readability and usability of your data. By following the steps outlined above, you can ensure your dates are formatted correctly and consistently across your entire spreadsheet.

Taking the time to adjust your date formats can prevent misunderstandings and errors, especially when sharing your data with others who may be using different regional settings. If you frequently work with dates in Excel, mastering this skill can save you a lot of time and hassle.

For more advanced Excel tips and tricks, consider exploring additional resources or tutorials. Whether you’re a beginner or an advanced user, there is always something new to learn that can make your data management tasks more efficient.

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