SQ 839 then TG 408 at Changi
Hangzhou → Singapore → Bangkok
Timetable, Singapore time
06:20SQ 839 from Hangzhou at the gate
19:15TG 408 to Bangkok leaves the gate
12 h 55 apart on the timetable
TG 408 leaves 12 h 55 after SQ 839 arrives on the timetable: more than half a day, so not a connection we count.