B6 478 then B6 1189 at JFK
Jacksonville → New York → San Diego
Timetable, New York time
18:00B6 478 from Jacksonville at the gate
17:05B6 1189 to San Diego leaves the gate
23 h 05 apart on the timetable, overnight
B6 1189 leaves 23 h 05 after B6 478 arrives on the timetable: more than half a day, so not a connection we count.