MF 8873 then EU 6678 at Pudong
Harbin → Shanghai → Chengdu
Timetable, Shanghai time
19:35MF 8873 from Harbin at the gate
12:55EU 6678 to Chengdu leaves the gate
17 h 20 apart on the timetable, overnight
EU 6678 leaves 17 h 20 after MF 8873 arrives on the timetable: more than half a day, so not a connection we count.