ZH 8904 then CZ 6608 at Guangzhou
Zhengzhou → Guangzhou → Wuhan
Timetable, Guangzhou time
13:55ZH 8904 from Zhengzhou at the gate
09:30CZ 6608 to Wuhan leaves the gate
19 h 35 apart on the timetable, overnight
CZ 6608 leaves 19 h 35 after ZH 8904 arrives on the timetable: more than half a day, so not a connection we count.