B6 633 then PD 6298 at San Francisco
Boston → San Francisco → Los Angeles
Timetable, San Francisco time
09:59B6 633 from Boston at the gate
07:00PD 6298 to Los Angeles leaves the gate
21 h 01 apart on the timetable, overnight
PD 6298 leaves 21 h 01 after B6 633 arrives on the timetable: more than half a day, so not a connection we count.