CN 7140 then CA 903 at Beijing
Harbin → Beijing → Ho Chi Minh City
Timetable, Beijing time
21:30CN 7140 from Harbin at the gate
20:15CA 903 to Ho Chi Minh City leaves the gate
22 h 45 apart on the timetable, overnight
CA 903 leaves 22 h 45 after CN 7140 arrives on the timetable: more than half a day, so not a connection we count.