FR 6596 then EC 7155 at Barcelona
Manchester → Barcelona → Milan
Timetable, Barcelona time
23:40FR 6596 from Manchester at the gate
18:40EC 7155 to Milan leaves the gate
19 h apart on the timetable, overnight
EC 7155 leaves 19 h after FR 6596 arrives on the timetable: more than half a day, so not a connection we count.