FR 7538 then QR 146 at Barcelona
Milan → Barcelona → Doha
Timetable, Barcelona time
00:40FR 7538 from Milan at the gate
15:20QR 146 to Doha leaves the gate
14 h 40 apart on the timetable
QR 146 leaves 14 h 40 after FR 7538 arrives on the timetable: more than half a day, so not a connection we count.