Im not an expert but could you loop the Tick_18 tag?
Tick 18 will loop automatically. Whenever the animation is at its end (frame 1000 or so) it will start over again. Unfortunately, the frames run about 20-25 per second, which means you get less than a minute of full animation, and then the loop goes straight back to the beginning. So I would get a clock tower that would run a full revolution in one minute, or so.
I want to have the clock run at a steady rate, which will keep time relative to the FS world. If its 10:27 AM in the sim, I want the clock to read 10:27 AM. Still working on a possible link-up between the scenery and the actual time of day.