That's a good one. I've only ever used Time and Date -
http://timeanddate.com/worldclock/astronomy.html?n=304Also, other ideas that were sent via email (from iPhones) include:
Grant: If anyone happens to have an android phone, iPod touch or iPhone, they can also download the free Met Office app, which has the times for sunrise and sunset each day.
Glen: Hi All another good app is for the iPhone. It's called sun seeker takes your gps location then gives you sun up and down locations in 3d great idea.