FR 3929 then VY 1178 at Barcelona
Trieste → Barcelona → Porto
Timetable, Barcelona time
15:30FR 3929 from Trieste at the gate
13:00VY 1178 to Porto leaves the gate
21 h 30 apart on the timetable, overnight
VY 1178 leaves 21 h 30 after FR 3929 arrives on the timetable: more than half a day, so not a connection we count.