Unfortunately, I don't know of any established tools. There are a number of libraries for various languages, or you can make API calls directly. But if you don't have programming experience, none of those are really an option.
For now, if there's an extremely simple action you want done on a schedule, I'd be happy to add it to the script I'm using for c/fire. Just let me know what you have in mind. In time, I'm sure people will make powerful botting tools that don't require as much technical knowledge, but they're just not here yet.
Before you dive into a complicated diy smart home solution, I recommend looking at an off-the-shelf sunrise alarm clock.