On 28th instant:
http://www.shanghaidaily.com/Metro/p.../shdaily.shtml

But is the difference between 13 and 32 hours really useful?
There is 1 train daily Shanghai-Harbin now. K56 takes 31 hours 43 minutes.

But that high speed train runs by day. It takes up the whole day. You need to sleep the previous night in Shanghai to depart in 9:44, and you are dumped in Harbin West at 22:47, looking for a hotel in winter night. And pay 898 yuan for the pleasure in second class.
Alternatively, you could get on K56 the previous evening at 21:05, spend two nights in lower soft sleeper for 767 yuan 5 jiao - saving 130 yuan 5 jiao PLUS the cost of both hotel nights - and arrive at 4:48.

Though this is an odd hour considering K56 terminates at Harbin. Why? I suppose Harbin subway doesnīt run so early. Couldnīt K56 have been shifted to leave at, say, 23:05, still not too late, and arrive at the more reasonable time of 6:48?