FR 3977 then EC 7155 at Barcelona
Dublin → Barcelona → Milan
Timetable, Barcelona time
22:55FR 3977 from Dublin at the gate
18:50EC 7155 to Milan leaves the gate
19 h 55 apart on the timetable, overnight
EC 7155 leaves 19 h 55 after FR 3977 arrives on the timetable: more than half a day, so not a connection we count.