TG 671 then UB 20 at Bangkok
Sapporo → Bangkok → Yangon
Timetable, Bangkok time
15:50TG 671 from Sapporo at the gate
09:25UB 20 to Yangon leaves the gate
17 h 35 apart on the timetable, overnight
UB 20 leaves 17 h 35 after TG 671 arrives on the timetable: more than half a day, so not a connection we count.