QR 2183 then CZ 1640 at San Francisco
Los Angeles → San Francisco → Philadelphia
Timetable, San Francisco time
23:27QR 2183 from Los Angeles at the gatealso BA 6449
22:58CZ 1640 to Philadelphia leaves the gatealso AA 1826
23 h 31 apart on the timetable, overnight
CZ 1640 leaves 23 h 31 after QR 2183 arrives on the timetable: more than half a day, so not a connection we count.