I have made a scheduler for lights that uses a labjack. I would like to
have an easier to read display for any created schedule.

Currently I am just using Tk listbox that displays like
<hour>:<minute> <Weekday> <Action>

It would be nice if I could generate a 24 hour clock (meaning a circle
with 24 divisions) and fill it in where the appropriate action is.

I have no idea how or even if this is possible with ruby.

I am open to other suggestions though as to an effective way of
displaying a complex schedule.