W6 2251 then SK 777 at Copenhagen
Budapest → Copenhagen → Athens
Timetable, Copenhagen time
08:35W6 2251 from Budapest at the gate
08:25SK 777 to Athens leaves the gate
23 h 50 apart on the timetable, overnight
SK 777 leaves 23 h 50 after W6 2251 arrives on the timetable: more than half a day, so not a connection we count.