AC 4121 then VA 8563 at San Francisco
Ontario → San Francisco → Newark
Timetable, San Francisco time
17:50AC 4121 from Ontario at the gate
13:05VA 8563 to Newark leaves the gate
19 h 15 apart on the timetable, overnight
VA 8563 leaves 19 h 15 after AC 4121 arrives on the timetable: more than half a day, so not a connection we count.