Check out the options available under Format > Date… > Custom (in Layout mode). You won't be able to achieve the exact format you have specified, though - so if it must be that way, you'll need to add a calculation field with a Text result.
Go to correct layout, enter layout mode.
Highlight field to edit format. (assuming it IS a date field)
Choose Format Menu > Date
Or right click field to choose "Date Format"
You can have two copies of a date field on one layout, each with a different Date Format.
The problem comes with 1ST, 2ND, 3RD Day of Month, Year.
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