LX 2805 then U2 6842 at Zurich
Geneva → Zurich → Porto
Timetable, Zurich time
08:30LX 2805 from Geneva at the gate
21:40U2 6842 to Porto leaves the gate
13 h 10 apart on the timetable
U2 6842 leaves 13 h 10 after LX 2805 arrives on the timetable: more than half a day, so not a connection we count.