FR 652 then LG 3752 at Lisbon
Dublin → Lisbon → Luxembourg
Timetable, Lisbon time
21:40FR 652 from Dublin at the gate
18:00LG 3752 to Luxembourg leaves the gate
20 h 20 apart on the timetable, overnight
LG 3752 leaves 20 h 20 after FR 652 arrives on the timetable: more than half a day, so not a connection we count.