Can I program outlet to turn on and off every four hours?

OK, here are a couple of threads describing daisy-chains. And the how to article in the community – created wiki on creating a virtual timer. But I would still go with core first. The daisychain will work, but it’s much clunkier.

http://thingsthataresmart.wiki/index.php?title=How_to_create_a_virtual_timer_for_a_light