A3 711 then FR 1199 at Athens
Barcelona → Athens → Rome
Timetable, Athens time
15:10A3 711 from Barcelona at the gate
14:20FR 1199 to Rome leaves the gate
23 h 10 apart on the timetable, overnight
FR 1199 leaves 23 h 10 after A3 711 arrives on the timetable: more than half a day, so not a connection we count.