Most ovens (at least in the UK) do have a timer setting that will turn the oven off when it’s done and also a way to delay it starting until a certain time. They aren’t the default though, most people will just set the basic kitchen timer on the oven and not even realise there’s the extra functions available.
You should be able to see what key codes the OS is receiving, but I don’t remember how, will try to update this later with a link