From Vienna (Austria) to Zurich HB (Switzerland) can take from 9 to 12 hours... it's mainly crossing whole Austria from east to west just over the Swiss border. It seems that the most direct train connection takes 9h02min from Vienna to Zurich without changing. In Zurich you take any direct train (called "inter-cities") to Berne, where you change for Geneva... or you take any direct train from Zurich to Geneva, but they all pass Berne... so it's not really worthy to wait for a direct train (it doesn't last longer, you simply have to change at Berne). Zurich-Berne takes 58min and Berne-Geneva about 1h45min.
That's quite exactly a journey that takes 12 hours (including waiting).
5
For a train journey from Milan to Zurich it would take approximately four hours to get one way.
According to Rail Europe, distributor of train tickets and rail passes, approximately between 7 and 10 hours.
lyon - vienna
500 km
the Geneva lake como rocket
9 hours
about 12 hours
About 4 1/2 hours.
about 12 hours
It would depend on how long the journey was.
not to long not to long