JL 6750 then XJ 601 at Narita
Seoul → Tokyo → Bangkok Don Mueang
Timetable, Tokyo time
09:33JL 6750 from Seoul at the gate
09:15XJ 601 to Bangkok Don Mueang leaves the gate
23 h 42 apart on the timetable, overnight
XJ 601 leaves 23 h 42 after JL 6750 arrives on the timetable: more than half a day, so not a connection we count.