FR 3976 then FR 4784 at Dublin
Barcelona → Dublin → Newquay
Timetable, Dublin time
23:30FR 3976 from Barcelona at the gate
12:00FR 4784 to Newquay leaves the gate
12 h 30 apart on the timetable, overnight
FR 4784 leaves 12 h 30 after FR 3976 arrives on the timetable: more than half a day, so not a connection we count.