TG 105 then UB 20 at Bangkok
Chiang Mai → Bangkok → Yangon
Timetable, Bangkok time
13:35TG 105 from Chiang Mai at the gate
09:25UB 20 to Yangon leaves the gate
19 h 50 apart on the timetable, overnight
UB 20 leaves 19 h 50 after TG 105 arrives on the timetable: more than half a day, so not a connection we count.