LA 6139 then BR 630 at San Francisco
Boston → San Francisco → Los Angeles
Timetable, San Francisco time
23:58LA 6139 from Boston at the gate
22:30BR 630 to Los Angeles leaves the gate
22 h 32 apart on the timetable, overnight
BR 630 leaves 22 h 32 after LA 6139 arrives on the timetable: more than half a day, so not a connection we count.