QR 3579 then FR 4084 at Barcelona
Seville → Barcelona → Warsaw Modlin
Timetable, Barcelona time
15:35QR 3579 from Seville at the gate
10:00FR 4084 to Warsaw Modlin leaves the gate
18 h 25 apart on the timetable, overnight
FR 4084 leaves 18 h 25 after QR 3579 arrives on the timetable: more than half a day, so not a connection we count.