W6 2251 then DY 3640 at Copenhagen
Budapest → Copenhagen → Nice
Timetable, Copenhagen time
08:35W6 2251 from Budapest at the gate
08:00DY 3640 to Nice leaves the gate
23 h 25 apart on the timetable, overnight
DY 3640 leaves 23 h 25 after W6 2251 arrives on the timetable: more than half a day, so not a connection we count.