BA 669 then SK 506 at Heathrow
Marrakesh → London → Copenhagen
Timetable, London time
19:50BA 669 from Marrakesh at the gate
17:00SK 506 to Copenhagen leaves the gate
21 h 10 apart on the timetable, overnight
SK 506 leaves 21 h 10 after BA 669 arrives on the timetable: more than half a day, so not a connection we count.