Daytime Slider Prototype

I saw Mohammed's slider and was inspired to play with the idea of the shadow moving over time as if it was cast by the sun.

Blog post on how it's done here:
http://bringitalong.tumblr.com/post/56966238893/daytime-slider-watching-hours-pass-with-css-and

Working example here:
http://staging.marcbanderson.com/Daytime_Slider/