GQ 243 then FR 1242 at Athens
Chios → Athens → Budapest
Timetable, Athens time
18:05GQ 243 from Chios at the gate
17:25FR 1242 to Budapest leaves the gate
23 h 20 apart on the timetable, overnight
FR 1242 leaves 23 h 20 after GQ 243 arrives on the timetable: more than half a day, so not a connection we count.