U2 874 then U2 8065 at Gatwick
Saint Helier → London → Barcelona
Timetable, London time
09:50U2 874 from Saint Helier at the gate
09:10U2 8065 to Barcelona leaves the gate
23 h 20 apart on the timetable, overnight
U2 8065 leaves 23 h 20 after U2 874 arrives on the timetable: more than half a day, so not a connection we count.