EU 6677 then HO 1247 at Pudong
Chengdu → Shanghai → Chongqing
Timetable, Shanghai time
20:00EU 6677 from Chengdu at the gate
16:45HO 1247 to Chongqing leaves the gate
20 h 45 apart on the timetable, overnight
HO 1247 leaves 20 h 45 after EU 6677 arrives on the timetable: more than half a day, so not a connection we count.