FR 13 then CA 3730 at Barcelona
Vienna → Barcelona → Shenzhen
Timetable, Barcelona time
19:35FR 13 from Vienna at the gate
11:35CA 3730 to Shenzhen leaves the gate
16 h apart on the timetable, overnight
CA 3730 leaves 16 h after FR 13 arrives on the timetable: more than half a day, so not a connection we count.