TG 663 then UB 20 at Bangkok
Shanghai → Bangkok → Yangon
Timetable, Bangkok time
11:55TG 663 from Shanghai at the gate
09:25UB 20 to Yangon leaves the gate
21 h 30 apart on the timetable, overnight
UB 20 leaves 21 h 30 after TG 663 arrives on the timetable: more than half a day, so not a connection we count.