I've created a little swatch thing for mIRC, and there are some noticable advantages. While there are 24 hour possibilities, 60 minute possibilities, and 60 second possibilities, there are only 1000 possibilities for swatch time. 500 separates the day in half. 250 separates the 6 hours. 125 separates the 3 hours. Then it gets complex figuring out the time after that, but is still worth the simplicity I think.
