FM 833 then UB 20 at Bangkok
Shanghai → Bangkok → Yangon
Timetable, Bangkok time
15:55FM 833 from Shanghai at the gate
09:25UB 20 to Yangon leaves the gate
17 h 30 apart on the timetable, overnight
UB 20 leaves 17 h 30 after FM 833 arrives on the timetable: more than half a day, so not a connection we count.