9C 8680 then GS 7926 at Guangzhou
Shijiazhuang → Guangzhou → Tianjin
Timetable, Guangzhou time
20:359C 8680 from Shijiazhuang at the gate
19:35GS 7926 to Tianjin leaves the gate
23 h apart on the timetable, overnight
GS 7926 leaves 23 h after 9C 8680 arrives on the timetable: more than half a day, so not a connection we count.