U2 8055 then FR 6920 at Barcelona
London Gatwick → Barcelona → Dublin
Timetable, Barcelona time
10:00U2 8055 from London Gatwick at the gate
06:20FR 6920 to Dublin leaves the gate
20 h 20 apart on the timetable, overnight
FR 6920 leaves 20 h 20 after U2 8055 arrives on the timetable: more than half a day, so not a connection we count.