U2 802 then DS 8491 at Gatwick
Belfast City → London → Geneva
Timetable, London time
20:50U2 802 from Belfast City at the gate
20:05DS 8491 to Geneva leaves the gatealso U2 8491
23 h 15 apart on the timetable, overnight
DS 8491 leaves 23 h 15 after U2 802 arrives on the timetable: more than half a day, so not a connection we count.