UL 505 then BA 470 at Heathrow
Colombo → London → Palma de Mallorca
Timetable, London time
08:40UL 505 from Colombo at the gate
08:00BA 470 to Palma de Mallorca leaves the gate
23 h 20 apart on the timetable, overnight
BA 470 leaves 23 h 20 after UL 505 arrives on the timetable: more than half a day, so not a connection we count.