FR 270 then AZ 79 at Barcelona
Milan → Barcelona → Rome
Timetable, Barcelona time
17:45FR 270 from Milan at the gate
16:50AZ 79 to Rome leaves the gate
23 h 05 apart on the timetable, overnight
AZ 79 leaves 23 h 05 after FR 270 arrives on the timetable: more than half a day, so not a connection we count.