EC 4427 then FR 1791 at Lisbon
Lyon → Lisbon → Luxembourg
Timetable, Lisbon time
17:05EC 4427 from Lyon at the gate
15:00FR 1791 to Luxembourg leaves the gate
21 h 55 apart on the timetable, overnight
FR 1791 leaves 21 h 55 after EC 4427 arrives on the timetable: more than half a day, so not a connection we count.