There are many ways you can do this. It can be an a Rule, Edict, Stamp, or an OnAdd. If you’re using containers, I’d user and OnAdd, e.g.
$Name=$Created.format(“l”);
See this: TBX L - OnAdd.tbx (77.5 KB)
See here: Date Formats.
The “l” in the .format Dot Operator formats the UTC date to the local date. You can change using other formatting codes to display the date in any number of formats.