HV 5951 then BA 503 at Lisbon
Amsterdam → Lisbon → London Heathrow
Timetable, Lisbon time
19:00HV 5951 from Amsterdam at the gate
10:40BA 503 to London Heathrow leaves the gate
15 h 40 apart on the timetable, overnight
BA 503 leaves 15 h 40 after HV 5951 arrives on the timetable: more than half a day, so not a connection we count.