CA 1604 then KE 852 at Beijing
Harbin → Beijing → Seoul Incheon
Timetable, Beijing time
17:10CA 1604 from Harbin at the gate
10:40KE 852 to Seoul Incheon leaves the gate
17 h 30 apart on the timetable, overnight
KE 852 leaves 17 h 30 after CA 1604 arrives on the timetable: more than half a day, so not a connection we count.