FR 7816 then FR 1198 at Fiumicino
Thessaloniki → Rome → Athens
Timetable, Rome time
17:30FR 7816 from Thessaloniki at the gate
12:10FR 1198 to Athens leaves the gate
18 h 40 apart on the timetable, overnight
FR 1198 leaves 18 h 40 after FR 7816 arrives on the timetable: more than half a day, so not a connection we count.