BA 669 then BA 1412 at Heathrow
Marrakesh → London → Belfast City
Timetable, London time
20:20BA 669 from Marrakesh at the gate
18:45BA 1412 to Belfast City leaves the gate
22 h 25 apart on the timetable, overnight
BA 1412 leaves 22 h 25 after BA 669 arrives on the timetable: more than half a day, so not a connection we count.