U2 820 then U2 883 at Gatwick
Belfast International → London → Saint Helier
Timetable, London time
19:05U2 820 from Belfast International at the gate
19:00U2 883 to Saint Helier leaves the gate
23 h 55 apart on the timetable, overnight
U2 883 leaves 23 h 55 after U2 820 arrives on the timetable: more than half a day, so not a connection we count.