IB 2471 then EC 7155 at Barcelona
Leon → Barcelona → Milan
Timetable, Barcelona time
20:25IB 2471 from Leon at the gatealso LL 3101, VY 5871, QR 6959
18:40EC 7155 to Milan leaves the gate
22 h 15 apart on the timetable, overnight
EC 7155 leaves 22 h 15 after IB 2471 arrives on the timetable: more than half a day, so not a connection we count.