Create sun simulation

I would like someone to create the following MonoBehavior for Unity in C#: Similar to this tool [login to view URL] I need a class where I can set the longitude, lattitude, year, day, month, hour and minute in public variables and have the script rotate a directional light (the sun) accordingly. The public date properties should be handled via a .net DateTime object to allow for easy integration with the .net framework. As well, a shader to handle a simulated day/night sky would be an awesome addition to the project, similar to this project: [login to view URL] That project is a solid attempt, although it has some problems, though it may still be worth a look to a prospective bidder. In summary, I'm looking for an easy-to-use time-of-day / shadow simulator. Thank you for your interest.