FR 6927 then IB 652 at Fiumicino
Barcelona → Rome → Madrid
Timetable, Rome time
18:40FR 6927 from Barcelona at the gate
16:20IB 652 to Madrid leaves the gate
21 h 40 apart on the timetable, overnight
IB 652 leaves 21 h 40 after FR 6927 arrives on the timetable: more than half a day, so not a connection we count.