i actually meant to write this kinda “read the time, pick a theme for x:xx to y:yy, then theme 2 for y:yy-x:xx” feature into the Paketti Theme Selector, but after all kinds of working on various features of the favorite system etc, gave up on writing it.
i still have it on my todo-list though.
would be easier to read os.time and set a specific theme.