MH 103 then SQ 121 at Kuala Lumpur
Dhaka → Kuala Lumpur → Singapore
Timetable, Kuala Lumpur time
18:40MH 103 from Dhaka at the gate
18:30SQ 121 to Singapore leaves the gate
23 h 50 apart on the timetable, overnight
SQ 121 leaves 23 h 50 after MH 103 arrives on the timetable: more than half a day, so not a connection we count.