SG 73 then UB 20 at Bangkok
Kolkata → Bangkok → Yangon
Timetable, Bangkok time
04:00SG 73 from Kolkata at the gate
17:20UB 20 to Yangon leaves the gate
13 h 20 apart on the timetable
UB 20 leaves 13 h 20 after SG 73 arrives on the timetable: more than half a day, so not a connection we count.