AC 4121 then TP 8493 at San Francisco
Ontario → San Francisco → Newark
Timetable, San Francisco time
17:50AC 4121 from Ontario at the gate
12:05TP 8493 to Newark leaves the gate
18 h 15 apart on the timetable, overnight
TP 8493 leaves 18 h 15 after AC 4121 arrives on the timetable: more than half a day, so not a connection we count.