OS 378 then CA 844 at Vienna
Nice → Vienna → Beijing
Timetable, Vienna time
21:40OS 378 from Nice at the gate
18:20CA 844 to Beijing leaves the gate
20 h 40 apart on the timetable, overnight
CA 844 leaves 20 h 40 after OS 378 arrives on the timetable: more than half a day, so not a connection we count.