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You can learn more about this topic on the following Wise Owl courses:
It is often more helpful to see the weekday name in a worksheet rather than just the standard short date format (the default):

Column D shows dates with a custom date format that includes the weekday name
To add a custom date format:
Select the cells for which you want to display the dates differently and right click then select Format Cells... (or press Ctrl + 1).
From the Number tab, choose Custom:

Choose Custom from the Number tab
Click in the Type: box and edit/type in your chosen date format:

Type in your custom format
Here are some examples of custom date formats to help you:
Date Formatting Code | Result |
|---|---|
ddd-dd-mmm-yy | Mon-09-Feb-26 |
dd dddd mmmm yyyy | 09 Monday February 2026 |
dddd/dd/mmm/yy | Monday/09/Feb/26 |
mmm-yy | Feb-26 |
dd/mmm/yy - dddd | 09/Feb/26 - Monday |
When typing in a custom date format you need to follow these rules:
Custom format Codes allowed | Allowed In-between Codes |
|---|---|
d m y | Minus sign, forward slash, or a space |
If a format of 'dddd-dd-mmm-yy' is applied to the original dates, they will now display as shown below:

The custom date format of dddd-dd-mmm-yy has been applied
You can learn more about this topic on the following Wise Owl courses:
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