SK 1517 then BA 600 at Heathrow
Copenhagen → London → Venezia
Timetable, London time
17:40SK 1517 from Copenhagen at the gate
17:00BA 600 to Venezia leaves the gate
23 h 20 apart on the timetable, overnight
BA 600 leaves 23 h 20 after SK 1517 arrives on the timetable: more than half a day, so not a connection we count.