A3 629 then A3 4034 at Athens
Luxembourg → Athens → Madrid
Timetable, Athens time
22:05A3 629 from Luxembourg at the gate
17:00A3 4034 to Madrid leaves the gate
18 h 55 apart on the timetable, overnight
A3 4034 leaves 18 h 55 after A3 629 arrives on the timetable: more than half a day, so not a connection we count.