AZ 77 then FR 1198 at Fiumicino
Barcelona → Rome → Athens
Timetable, Rome time
13:25AZ 77 from Barcelona at the gate
10:55FR 1198 to Athens leaves the gate
21 h 30 apart on the timetable, overnight
FR 1198 leaves 21 h 30 after AZ 77 arrives on the timetable: more than half a day, so not a connection we count.