The above is a screen capture of a very old application I was using back in the days of DOS or was it Win 3.x? Well anyway, it has been updated for Win 7 32/64 and I'm using it on my computer. You can see where the sun is shining and it gives sunrise/sunset at your location plus lots of other features. It is shareware. You can get the download at GeoClock.
Cross Posted at Classical Values