Frankly, if you hadn't pointed out the funny part, I would've missed it. Indeed, the background, the sunshine, the one-way movement and the song come together as a humorous Sofia-themed video.  The song is 2 Unlimited's No one. As for the time of day, judging by the exact place on the ring road, the direction and the shadows, I'd put this around noon, maybe 1PM.
On an unrelated topic, since I use vimeo primarily to watch time-lapse videos, here's one of remarkable beauty http://vimeo.com/22439234 :)