I use simple smart switches for that. I can use my iPad to switch the lights on and off manually or they can be automated. It does require some “smart home” components but the switches are simple and cheap. i always hated trying to get the mechanical timer switches setup correctly.

I don’t go in for full integration of smart home features into appliances and such. Using smart switches gives me enough “smartness” without to much risk from a system in flux.

Right. For that, you need a timer, which you can also get at Home Depot for a few dollars. What else you got?

The timer is something you can leave on all the time. If you don't come home before dark some day, you still want the lights to go on.

A simple timer plugged into a wall outlet will. We've had those for decades.