SK 646 then DY 3640 at Copenhagen
Hamburg → Copenhagen → Nice
Timetable, Copenhagen time
10:40SK 646 from Hamburg at the gate
08:00DY 3640 to Nice leaves the gate
21 h 20 apart on the timetable, overnight
DY 3640 leaves 21 h 20 after SK 646 arrives on the timetable: more than half a day, so not a connection we count.