CZ 678 then TG 669 at Guangzhou
Luxembourg → Guangzhou → Bangkok
Timetable, Guangzhou time
14:55CZ 678 from Luxembourg at the gate
14:50TG 669 to Bangkok leaves the gate
23 h 55 apart on the timetable, overnight
TG 669 leaves 23 h 55 after CZ 678 arrives on the timetable: more than half a day, so not a connection we count.