SQ 115 then SQ 838 at Changi
Kuala Lumpur → Singapore → Hangzhou
Timetable, Singapore time
18:35SQ 115 from Kuala Lumpur at the gate
18:30SQ 838 to Hangzhou leaves the gate
23 h 55 apart on the timetable, overnight
SQ 838 leaves 23 h 55 after SQ 115 arrives on the timetable: more than half a day, so not a connection we count.