When you want to change the look of something in a data grid, the normal technique is to edit the row template form (double click in the IDE where the rows would appear), put a label into that column, and then using data binding to format the data in some other way.
Python has a standard way of specifying datetime formatting using datetime.strftime. You can see some examples here: Python strftime() function - GeeksforGeeks
Alternatively, you can use a custom component that has all that built in (and converts to the user’s local time zone): Local Timezone Display in Data Grids You’d drop one of those components into the row template column instead of a label.