B6 733 then NZ 2223 at San Francisco
Boston → San Francisco → Tampa
Timetable, San Francisco time
19:35B6 733 from Boston at the gatealso EY 8330
07:45NZ 2223 to Tampa leaves the gate
12 h 10 apart on the timetable, overnight
NZ 2223 leaves 12 h 10 after B6 733 arrives on the timetable: more than half a day, so not a connection we count.