Bullet Train in December 2012 from Hangzhou to Shanghai

It is not difficult since there are many bullet trains running daily between the two cities. You can buy the ticket in advance. It is also OK to buy it upon arrival at the train station when leaving. The last train departs at 21:35 from the South Railway Station. It is also OK to return on Jan. 1. The last high speed train departs from Hongqiao Railway Station at 21:52.

Thanks a lot, Frank!