BA 1411 then BA 922 at Heathrow
Belfast City → London → Hannover
Timetable, London time
08:20BA 1411 from Belfast City at the gate
07:50BA 922 to Hannover leaves the gate
23 h 30 apart on the timetable, overnight
BA 922 leaves 23 h 30 after BA 1411 arrives on the timetable: more than half a day, so not a connection we count.