OD 357 then AK 393 at Kuala Lumpur
Batam → Kuala Lumpur → Medan
Timetable, Kuala Lumpur time
22:50OD 357 from Batam at the gate
17:15AK 393 to Medan leaves the gate
18 h 25 apart on the timetable, overnight
AK 393 leaves 18 h 25 after OD 357 arrives on the timetable: more than half a day, so not a connection we count.