IB 5131 then EC 7153 at Barcelona
Alicante → Barcelona → Milan
Timetable, Barcelona time
14:50IB 5131 from Alicante at the gate
13:25EC 7153 to Milan leaves the gate
22 h 35 apart on the timetable, overnight
EC 7153 leaves 22 h 35 after IB 5131 arrives on the timetable: more than half a day, so not a connection we count.