CA 1711 then KE 852 at Beijing
Hangzhou → Beijing → Seoul Incheon
Timetable, Beijing time
14:20CA 1711 from Hangzhou at the gate
10:40KE 852 to Seoul Incheon leaves the gate
20 h 20 apart on the timetable, overnight
KE 852 leaves 20 h 20 after CA 1711 arrives on the timetable: more than half a day, so not a connection we count.