W4 7546 then W4 6314 at Madrid
Seville → Madrid → Milan
Timetable, Madrid time
23:55W4 7546 from Seville at the gate
23:10W4 6314 to Milan leaves the gate
23 h 15 apart on the timetable, overnight
W4 6314 leaves 23 h 15 after W4 7546 arrives on the timetable: more than half a day, so not a connection we count.