LX 817 then U2 2756 at Zurich
Hannover → Zurich → Edinburgh
Timetable, Zurich time
16:40LX 817 from Hannover at the gate
14:15U2 2756 to Edinburgh leaves the gate
21 h 35 apart on the timetable, overnight
U2 2756 leaves 21 h 35 after LX 817 arrives on the timetable: more than half a day, so not a connection we count.