SN 3704 then DS 1530 at Brussels
Barcelona → Brussels → Geneva
Timetable, Brussels time
19:50SN 3704 from Barcelona at the gate
13:25DS 1530 to Geneva leaves the gate
17 h 35 apart on the timetable, overnight
DS 1530 leaves 17 h 35 after SN 3704 arrives on the timetable: more than half a day, so not a connection we count.