CZ 3579 then 9C 8567 at Pudong
Wuhan → Shanghai → Jeju City
Timetable, Shanghai time
17:40CZ 3579 from Wuhan at the gate
15:559C 8567 to Jeju City leaves the gate
22 h 15 apart on the timetable, overnight
9C 8567 leaves 22 h 15 after CZ 3579 arrives on the timetable: more than half a day, so not a connection we count.