CX 364 then EU 6678 at Pudong
Hong Kong → Shanghai → Chengdu
Timetable, Shanghai time
20:20CX 364 from Hong Kong at the gate
12:55EU 6678 to Chengdu leaves the gate
16 h 35 apart on the timetable, overnight
EU 6678 leaves 16 h 35 after CX 364 arrives on the timetable: more than half a day, so not a connection we count.