There are numerous expressions you can use to fromat DateTime attributes. For your example, you will need something like 'formatDateTime($object/DateTime,'EEE, d MMM yyyy)'.
You will need to store this attribute in a separate string, or use a virtual attribute to present the DateTime in the grid.
More information about microflow expressions can be found here
More information about formating datetime fields can be found on the website of Java, which can be found here
Thank you for replies. I very like this feature.