FR 3976 then QR 18 at Dublin
Barcelona → Dublin → Doha
Timetable, Dublin time
21:25FR 3976 from Barcelona at the gate
14:05QR 18 to Doha leaves the gate
16 h 40 apart on the timetable, overnight
QR 18 leaves 16 h 40 after FR 3976 arrives on the timetable: more than half a day, so not a connection we count.