KQ 100 then BA 544 at Heathrow
Nairobi → London → Bologna
Timetable, London time
15:30KQ 100 from Nairobi at the gate
15:15BA 544 to Bologna leaves the gate
23 h 45 apart on the timetable, overnight
BA 544 leaves 23 h 45 after KQ 100 arrives on the timetable: more than half a day, so not a connection we count.