AK 6433 then SQ 121 at Kuala Lumpur
Kota Baharu → Kuala Lumpur → Singapore
Timetable, Kuala Lumpur time
19:05AK 6433 from Kota Baharu at the gate
18:30SQ 121 to Singapore leaves the gate
23 h 25 apart on the timetable, overnight
SQ 121 leaves 23 h 25 after AK 6433 arrives on the timetable: more than half a day, so not a connection we count.