FR 1300 then FR 1791 at Lisbon
Brussels Charleroi → Lisbon → Luxembourg
Timetable, Lisbon time
18:00FR 1300 from Brussels Charleroi at the gate
16:20FR 1791 to Luxembourg leaves the gate
22 h 20 apart on the timetable, overnight
FR 1791 leaves 22 h 20 after FR 1300 arrives on the timetable: more than half a day, so not a connection we count.