I'm going to toss an idea and see if anyone grabs it (if it's even possible). A sign that controls the on or off state of redstone based on game time. Ideas for what it could be useful for: Opening a door during the day and closing it during night. Musical notes that play note(s) on the hour. (think of Big Ben.... actually that might be annoying). Musical note that plays at a certain time to warn of night coming.
