BR 28 then TP 4392 at San Francisco
Taipei → San Francisco → Boston
Timetable, San Francisco time
18:40BR 28 from Taipei at the gatealso AV 4507, TG 6254, CM 8013
10:44TP 4392 to Boston leaves the gate
16 h 04 apart on the timetable, overnight
TP 4392 leaves 16 h 04 after BR 28 arrives on the timetable: more than half a day, so not a connection we count.