U2 856 then U2 8055 at Gatwick
Aberdeen → London → Barcelona
Timetable, London time
07:50U2 856 from Aberdeen at the gate
07:40U2 8055 to Barcelona leaves the gate
23 h 50 apart on the timetable, overnight
U2 8055 leaves 23 h 50 after U2 856 arrives on the timetable: more than half a day, so not a connection we count.