FR 270 then IB 412 at Barcelona
Milan → Barcelona → Madrid
Timetable, Barcelona time
17:45FR 270 from Milan at the gate
13:35IB 412 to Madrid leaves the gatealso IB 412S, LA 1524, LA 1577, CX 1926, LL 3012, VY 5060, AV 6172, BA 7081, QR 8004, AA 8776
19 h 50 apart on the timetable, overnight
IB 412 leaves 19 h 50 after FR 270 arrives on the timetable: more than half a day, so not a connection we count.