CZ 314 then 3U 6006 at Pudong
Seoul → Shanghai → Harbin
Timetable, Shanghai time
13:55CZ 314 from Seoul at the gate
11:053U 6006 to Harbin leaves the gate
21 h 10 apart on the timetable, overnight
3U 6006 leaves 21 h 10 after CZ 314 arrives on the timetable: more than half a day, so not a connection we count.