EC 7154 then W6 2378 at Barcelona
Milan → Barcelona → Budapest
Timetable, Barcelona time
23:15EC 7154 from Milan at the gate
20:50W6 2378 to Budapest leaves the gate
21 h 35 apart on the timetable, overnight
W6 2378 leaves 21 h 35 after EC 7154 arrives on the timetable: more than half a day, so not a connection we count.