EU 6677 then HO 1655 at Pudong
Chengdu → Shanghai → Melbourne
Timetable, Shanghai time
20:00EU 6677 from Chengdu at the gate
17:25HO 1655 to Melbourne leaves the gate
21 h 25 apart on the timetable, overnight
HO 1655 leaves 21 h 25 after EU 6677 arrives on the timetable: more than half a day, so not a connection we count.