Timestamp display

Currently the backups show the filesystem timestamp. In usual conditions, this is acceptable since the timestamp on the filename will be the same as the one from the file creation date. However, when you copy several files into the backup folder, they all have the same creation date.

Would it be possible to insert a timestamp inside the backup SQL (like a comment) and have this shown instead of file creation date? Or maybe parse the filename and list the date stamp if present?