EC 7152 then FR 2402 at Barcelona
Milan → Barcelona → Seville
Timetable, Barcelona time
11:25EC 7152 from Milan at the gate
06:00FR 2402 to Seville leaves the gate
18 h 35 apart on the timetable, overnight
FR 2402 leaves 18 h 35 after EC 7152 arrives on the timetable: more than half a day, so not a connection we count.