What's the Longest You've Ever Listened to One Radio Station?

I have listened to the radio for 8 hours during a road trip. The station was playing good music, giving traffic updates, and the DJ was very funny too. so I do not see any reason to change it. So, when a station is very consistent, you won't even notice that time has passed.

I'm not sure how long that was, but I listened to a particular radio station all night. They were playing some good songs then.