[lazyeye]

I have a Philips Hue bridge plus Hue smart bulb. The Hue system has an "Automations" function you can configure via their phone app. So I just created a set of custom automations to change the bulb color on a set daily schedule. There are lots of other ways of doing this depending on your setup. I think you could probably use IFTTT or Zapier to do the same thing with other brands of smart bulb.