U2 840 then EC 8065 at Gatwick
Castletown → London → Barcelona
Timetable, London time
16:50U2 840 from Castletown at the gate
15:35EC 8065 to Barcelona leaves the gate
22 h 45 apart on the timetable, overnight
EC 8065 leaves 22 h 45 after U2 840 arrives on the timetable: more than half a day, so not a connection we count.