IJ 834 then JL 6777 at Narita
Sapporo → Tokyo → Tianjin
Timetable, Tokyo time
10:55IJ 834 from Sapporo at the gate
09:50JL 6777 to Tianjin leaves the gate
22 h 55 apart on the timetable, overnight
JL 6777 leaves 22 h 55 after IJ 834 arrives on the timetable: more than half a day, so not a connection we count.