QR 836 then UL 405 at Bangkok
Doha → Bangkok → Colombo
Timetable, Bangkok time
14:10QR 836 from Doha at the gate
13:55UL 405 to Colombo leaves the gate
23 h 45 apart on the timetable, overnight
UL 405 leaves 23 h 45 after QR 836 arrives on the timetable: more than half a day, so not a connection we count.