OD 821 then OD 186 at Kuala Lumpur
Seoul → Kuala Lumpur → Kathmandu
Timetable, Kuala Lumpur time
15:25OD 821 from Seoul at the gate
13:35OD 186 to Kathmandu leaves the gate
22 h 10 apart on the timetable, overnight
OD 186 leaves 22 h 10 after OD 821 arrives on the timetable: more than half a day, so not a connection we count.