BA 1451 then BA 928 at Heathrow
Edinburgh → London → Hannover
Timetable, London time
16:40BA 1451 from Edinburgh at the gate
14:40BA 928 to Hannover leaves the gate
22 h apart on the timetable, overnight
BA 928 leaves 22 h after BA 1451 arrives on the timetable: more than half a day, so not a connection we count.