DY 3581 then DY 3640 at Copenhagen
Prague → Copenhagen → Nice
Timetable, Copenhagen time
15:05DY 3581 from Prague at the gate
08:00DY 3640 to Nice leaves the gate
16 h 55 apart on the timetable, overnight
DY 3640 leaves 16 h 55 after DY 3581 arrives on the timetable: more than half a day, so not a connection we count.