BA 1347 then BA 492 at Heathrow
Saint Helier → London → Gibraltar
Timetable, London time
09:35BA 1347 from Saint Helier at the gate
08:10BA 492 to Gibraltar leaves the gate
22 h 35 apart on the timetable, overnight
BA 492 leaves 22 h 35 after BA 1347 arrives on the timetable: more than half a day, so not a connection we count.