FR 3977 then FR 3800 at Barcelona
Dublin → Barcelona → Birmingham (UK)
Timetable, Barcelona time
11:05FR 3977 from Dublin at the gate
11:00FR 3800 to Birmingham (UK) leaves the gate
23 h 55 apart on the timetable, overnight
FR 3800 leaves 23 h 55 after FR 3977 arrives on the timetable: more than half a day, so not a connection we count.