U2 8496 then U2 8419 at Gatwick
Geneva → London → Nice
Timetable, London time
11:35U2 8496 from Geneva at the gate
08:45U2 8419 to Nice leaves the gate
21 h 10 apart on the timetable, overnight
U2 8419 leaves 21 h 10 after U2 8496 arrives on the timetable: more than half a day, so not a connection we count.