FR 3976 then LX 405 at Dublin
Barcelona → Dublin → Zurich
Timetable, Dublin time
21:25FR 3976 from Barcelona at the gate
18:35LX 405 to Zurich leaves the gate
21 h 10 apart on the timetable, overnight
LX 405 leaves 21 h 10 after FR 3976 arrives on the timetable: more than half a day, so not a connection we count.