We actually had loads of free time, around 3 hours? But we were so tired that we actually had a nap session in the dining area. It must've been a funny sight - a bunch of exchange students sitting in sofas in a circle napping. I wish I could've explored the city in more detail but truly my energy levels weren't up for it. I will definitely visit again and go wild at the markets :)
There are many department stores in Switzerland which have a buffet style dining area at the top level. The variety of food is absolutely amazing and the way everything is set up is really beautiful! Prices are decent for Swiss standards but still hurts the student's wallet (particularly if you pile up). I ended up just getting this small plate of roasted potatoes, vegetables, white asparagus, semolina balls I think? and some absolutely amazing garlicky tomato beans thing. It ended up being 8.50 CHF, small but I suppose it was a hearty meal.