JU 8510 then WS 8476 at San Francisco
New York JFK → San Francisco → Detroit
Timetable, San Francisco time
23:54JU 8510 from New York JFK at the gate
23:20WS 8476 to Detroit leaves the gate
23 h 26 apart on the timetable, overnight
WS 8476 leaves 23 h 26 after JU 8510 arrives on the timetable: more than half a day, so not a connection we count.