Sun Clock: a 24-hour clock that tells more than just the time

Sun Clock is a 24-hour clock that shows sunrise, sunset, golden hour, and twilight times for your current location. Rather than showing the standard 1 to 12 clock face, it has 12 at the top and cycles through to 24 (at the bottom) and back through to 12, 2 hours per interval. You then get coloured areas for sunrise, sunset, golden hour, etc.