BA 669 then BA 1356 at Heathrow
Marrakesh → London → Saint Helier
Timetable, London time
20:20BA 669 from Marrakesh at the gate
19:00BA 1356 to Saint Helier leaves the gate
22 h 40 apart on the timetable, overnight
BA 1356 leaves 22 h 40 after BA 669 arrives on the timetable: more than half a day, so not a connection we count.