TG 342 then VZ 3680 at Bangkok
Karachi → Bangkok → Chengdu
Timetable, Bangkok time
06:10TG 342 from Karachi at the gate
18:35VZ 3680 to Chengdu leaves the gate
12 h 25 apart on the timetable
VZ 3680 leaves 12 h 25 after TG 342 arrives on the timetable: more than half a day, so not a connection we count.