QR 3721 then U2 3218 at Barcelona
Culleredo → Barcelona → Edinburgh
Timetable, Barcelona time
19:45QR 3721 from Culleredo at the gate
19:15U2 3218 to Edinburgh leaves the gate
23 h 30 apart on the timetable, overnight
U2 3218 leaves 23 h 30 after QR 3721 arrives on the timetable: more than half a day, so not a connection we count.