QR 3762 then OZ 512 at Barcelona
Amsterdam → Barcelona → Seoul
Timetable, Barcelona time
21:25QR 3762 from Amsterdam at the gate
20:40OZ 512 to Seoul leaves the gatealso KE 5912
23 h 15 apart on the timetable, overnight
OZ 512 leaves 23 h 15 after QR 3762 arrives on the timetable: more than half a day, so not a connection we count.