FR 3078 then EC 7617 at Lisbon
Barcelona → Lisbon → Nice
Timetable, Lisbon time
21:35FR 3078 from Barcelona at the gate
17:00EC 7617 to Nice leaves the gate
19 h 25 apart on the timetable, overnight
EC 7617 leaves 19 h 25 after FR 3078 arrives on the timetable: more than half a day, so not a connection we count.