ACF uses jQuery UI to show the date picker, so I’m afraid that is not possible. What you can do is to use the number field and select field instead for the date field. If you want, you can also update the input to a real date picker by using the update_field() function in the acf/save_post action hook.
I hope this helps 🙂
Welcome to the Advanced Custom Fields community forum.
Browse through ideas, snippets of code, questions and answers between fellow ACF users