W6 2441 then A3 226 at Athens
Budapest → Athens → Kos
Timetable, Athens time
20:55W6 2441 from Budapest at the gate
20:35A3 226 to Kos leaves the gate
23 h 40 apart on the timetable, overnight
A3 226 leaves 23 h 40 after W6 2441 arrives on the timetable: more than half a day, so not a connection we count.