KR 721 then TG 215 at Bangkok
Siem Reap → Bangkok → Phuket
Timetable, Bangkok time
17:05KR 721 from Siem Reap at the gate
15:00TG 215 to Phuket leaves the gate
21 h 55 apart on the timetable, overnight
TG 215 leaves 21 h 55 after KR 721 arrives on the timetable: more than half a day, so not a connection we count.