KL 1005 then BA 1348 at Heathrow
Amsterdam → London → Saint Helier
Timetable, London time
10:45KL 1005 from Amsterdam at the gate
08:35BA 1348 to Saint Helier leaves the gate
21 h 50 apart on the timetable, overnight
BA 1348 leaves 21 h 50 after KL 1005 arrives on the timetable: more than half a day, so not a connection we count.