EU 6677 then CZ 3852 at Pudong
Chengdu → Shanghai → Shantou
Timetable, Shanghai time
20:00EU 6677 from Chengdu at the gate
13:40CZ 3852 to Shantou leaves the gate
17 h 40 apart on the timetable, overnight
CZ 3852 leaves 17 h 40 after EU 6677 arrives on the timetable: more than half a day, so not a connection we count.