GQ 293 then GQ 784 at Athens
Alexandroupolis → Athens → Tbilisi
Timetable, Athens time
21:25GQ 293 from Alexandroupolis at the gate
21:00GQ 784 to Tbilisi leaves the gate
23 h 35 apart on the timetable, overnight
GQ 784 leaves 23 h 35 after GQ 293 arrives on the timetable: more than half a day, so not a connection we count.