OZ 602 then 7C 2503 at Incheon
Sydney → Seoul → Bangkok
Timetable, Seoul time
20:00OZ 602 from Sydney at the gate
19:307C 2503 to Bangkok leaves the gate
23 h 30 apart on the timetable, overnight
7C 2503 leaves 23 h 30 after OZ 602 arrives on the timetable: more than half a day, so not a connection we count.