3U 8187 then KR 704 at Bangkok
Chongqing → Bangkok → Phnom Penh
Timetable, Bangkok time
18:203U 8187 from Chongqing at the gate
16:15KR 704 to Phnom Penh leaves the gate
21 h 55 apart on the timetable, overnight
KR 704 leaves 21 h 55 after 3U 8187 arrives on the timetable: more than half a day, so not a connection we count.