FR 270 then QR 146 at Barcelona
Milan → Barcelona → Doha
Timetable, Barcelona time
17:45FR 270 from Milan at the gate
15:20QR 146 to Doha leaves the gate
21 h 35 apart on the timetable, overnight
QR 146 leaves 21 h 35 after FR 270 arrives on the timetable: more than half a day, so not a connection we count.