CZ 5031 then AK 397 at Kuala Lumpur
Shenzhen → Kuala Lumpur → Medan
Timetable, Kuala Lumpur time
14:34CZ 5031 from Shenzhen at the gate
14:30AK 397 to Medan leaves the gate
23 h 56 apart on the timetable, overnight
AK 397 leaves 23 h 56 after CZ 5031 arrives on the timetable: more than half a day, so not a connection we count.