FR 3181 then EC 7151 at Barcelona
Rome → Barcelona → Milan
Timetable, Barcelona time
12:15FR 3181 from Rome at the gate
07:30EC 7151 to Milan leaves the gate
19 h 15 apart on the timetable, overnight
EC 7151 leaves 19 h 15 after FR 3181 arrives on the timetable: more than half a day, so not a connection we count.