Automatically greets you if the time of day changes.
Simply download this and just let it run! This makes a batch file that runs at startup. The batch file will open up the program.
https://gist.github.com/rbw/cd9ce89398a08e2f6b2acab14e3c58d7 for time of day detector,
https://github.com/jithurjacob/Windows-10-Toast-Notifications for win10toast