ZH 8904 then MF 8294 at Guangzhou
Zhengzhou → Guangzhou → Tianjin
Timetable, Guangzhou time
12:20ZH 8904 from Zhengzhou at the gate
12:00MF 8294 to Tianjin leaves the gate
23 h 40 apart on the timetable, overnight
MF 8294 leaves 23 h 40 after ZH 8904 arrives on the timetable: more than half a day, so not a connection we count.