TP 1923 then EC 7667 at Lisbon
Porto → Lisbon → Luxembourg
Timetable, Lisbon time
11:30TP 1923 from Porto at the gate
07:45EC 7667 to Luxembourg leaves the gate
20 h 15 apart on the timetable, overnight
EC 7667 leaves 20 h 15 after TP 1923 arrives on the timetable: more than half a day, so not a connection we count.