U2 840 then U2 8763 at Gatwick
Castletown → London → MLK
Timetable, London time
16:50U2 840 from Castletown at the gate
14:40U2 8763 to MLK leaves the gate
21 h 50 apart on the timetable, overnight
U2 8763 leaves 21 h 50 after U2 840 arrives on the timetable: more than half a day, so not a connection we count.