VN 532 then EU 6678 at Pudong
Hanoi → Shanghai → Chengdu
Timetable, Shanghai time
14:15VN 532 from Hanoi at the gate
12:55EU 6678 to Chengdu leaves the gate
22 h 40 apart on the timetable, overnight
EU 6678 leaves 22 h 40 after VN 532 arrives on the timetable: more than half a day, so not a connection we count.