GQ 691 then A3 4020 at Athens
Tirana → Athens → Thessaloniki
Timetable, Athens time
22:40GQ 691 from Tirana at the gate
18:30A3 4020 to Thessaloniki leaves the gate
19 h 50 apart on the timetable, overnight
A3 4020 leaves 19 h 50 after GQ 691 arrives on the timetable: more than half a day, so not a connection we count.