Just returned from Zurich actually and had to overnight like you have to... Â Zurich has a restrictions on jets flying out after some incredibly early hour like 6PM but they let them fly in so it is frequent to get stuck overnight. Â Zurich is quaint at times - I awoke at my luxury business hotel to hear cow bells outside. Â But it is not as conservative as one might think. Â I attended a 250 birthday party for a private bank in Zurich a few years ago - the entertainment was complete with topless body painted woman - they of course where painted to match the tasteful oil painting art collection that the bank had.... Â Later there was a circus segment in the entertainment that feature TV's. Â Needless to say this wasn't the Zurich I knew. Â Keep in mind that attending the party where about 1000 of the banks best customers, mostly very wealthy Swiss of about an average age of 65 and nobody batted an eye. Â I was told at the party that Zurich has a very active gay community and thus the entertainment reflected this. Â In the states people would have gone bonkers and drawn there funds out the next day. Â Anyway try this link for Zurich entertainment. Â It might give you options for a more entertaining 20 hours in Zurich. http://www.worldsbestbars.com/city/Zurich/
As I scheduled meetings, I can't say I enjoined any nightclubs but the weather was beautiful with the trees in bloom by the river. Â I did have time for a quick dinner in a garden. Â Hope you have a great stay.