I have a friend who created the same thing - in a much simpler way, without additional software.
She simply created an untimed event each day (NOT a repeating event). She called it "DRoE" or "Journal," and treated it like the right-hand page of a paper planner.
I have to admit I was a little jealous that she thought of something so obvious so quickly! (lol)
Of course - if you wanted to improve on this simple concept - you could also start the title of each with a shortcut "TimeDate Stamp."