IJ 834 then O3 364 at Narita
Sapporo → Tokyo → Shenzhen
Timetable, Tokyo time
10:55IJ 834 from Sapporo at the gate
10:18O3 364 to Shenzhen leaves the gate
23 h 23 apart on the timetable, overnight
O3 364 leaves 23 h 23 after IJ 834 arrives on the timetable: more than half a day, so not a connection we count.