FR 270 then FR 6927 at Barcelona
Milan → Barcelona → Rome
Timetable, Barcelona time
17:10FR 270 from Milan at the gate
09:05FR 6927 to Rome leaves the gate
15 h 55 apart on the timetable, overnight
FR 6927 leaves 15 h 55 after FR 270 arrives on the timetable: more than half a day, so not a connection we count.