QR 3737 then EC 7694 at Barcelona
Nice → Barcelona → Lisbon
Timetable, Barcelona time
23:05QR 3737 from Nice at the gate
15:30EC 7694 to Lisbon leaves the gate
16 h 25 apart on the timetable, overnight
EC 7694 leaves 16 h 25 after QR 3737 arrives on the timetable: more than half a day, so not a connection we count.