Bulk Rename Utility

Hello

I've been using Bulk Rename Utility and I've recently discovered EXIF tool for other "special" renaming operations.
Since I've seen similar threads in this board I thought it was ok to ask this even if its not strictly related to BRU.

I've been looking around but I couldn't find a clear answer to how to set the date format of a value.
Example:
-overwrite_original "-file:filecreatedate>exif:UserComment" %1

With this line I copy the file creation date into the "comments" field, however it copies like this:
YYYY:MM:DD hh:mm:ss and + 02 GMT

How to make it look like

DD:MM:YYYY <add a custom text here> hh:mm:ss[<Day Type Between square brackets>]

Or at least simply DD:MM:YYYY hh:mm:ss ?

Thanks for your time

Exiftool uses -d to specify specialized date-formats.
Not sure what you mean by 'Day Type', so consider %A an example to edit:

-d "%d:%m:%Y YourCustomText %H:%M:%S[%A]" -file:filecreatedate^>exif:usercomment
It writes your customized date-format into exif:usercomment