FR 3976 then EI 3222 at Dublin
Barcelona → Dublin → Glasgow
Timetable, Dublin time
19:00FR 3976 from Barcelona at the gate
10:20EI 3222 to Glasgow leaves the gate
15 h 20 apart on the timetable, overnight
EI 3222 leaves 15 h 20 after FR 3976 arrives on the timetable: more than half a day, so not a connection we count.