FR 270 then EC 7205 at Barcelona
Milan → Barcelona → Southampton
Timetable, Barcelona time
17:55FR 270 from Milan at the gate
13:05EC 7205 to Southampton leaves the gate
19 h 10 apart on the timetable, overnight
EC 7205 leaves 19 h 10 after FR 270 arrives on the timetable: more than half a day, so not a connection we count.