W6 2095 then QR 4704 at Barcelona
Krakow → Barcelona → Porto
Timetable, Barcelona time
18:20W6 2095 from Krakow at the gate
08:35QR 4704 to Porto leaves the gate
14 h 15 apart on the timetable, overnight
QR 4704 leaves 14 h 15 after W6 2095 arrives on the timetable: more than half a day, so not a connection we count.