9C 6566 then EU 6678 at Pudong
Osaka → Shanghai → Chengdu
Timetable, Shanghai time
16:459C 6566 from Osaka at the gate
12:55EU 6678 to Chengdu leaves the gate
20 h 10 apart on the timetable, overnight
EU 6678 leaves 20 h 10 after 9C 6566 arrives on the timetable: more than half a day, so not a connection we count.