GateConnections

U2 7643 then DL 53 at Zurich

Lisbon → Zurich → New York JFK

Timetable, Zurich time

13:55U2 7643 from Lisbon at the gate

13:30DL 53 to New York JFK leaves the gate

23 h 35 apart on the timetable, overnight

DL 53 leaves 23 h 35 after U2 7643 arrives on the timetable: more than half a day, so not a connection we count.