If I would change it in the code for all users it means that it also changes for the users that expect the timestamp to be returned as it is now. We had this before with several users wanted to have some behavior changed and after the change we did get a lot of bug reports because other users did expect the old behavior and reported it as broken. Because of that I’m careful with updating code that would have impact on existing projects.
I think a good place to place the code is in the file lib/setup/database.js. For now I would suggest to just making the changes yourself. Let me know if it is working or not.