EC 3749 then IB 5476 at Barcelona
Milan → Barcelona → Jerez de la Forntera
Timetable, Barcelona time
21:30EC 3749 from Milan at the gate
12:15IB 5476 to Jerez de la Forntera leaves the gate
14 h 45 apart on the timetable, overnight
IB 5476 leaves 14 h 45 after EC 3749 arrives on the timetable: more than half a day, so not a connection we count.