DL 996 then UA 839 at LAX
Atlanta → Los Angeles → Sydney
Timetable, Los Angeles time
08:59DL 996 from Atlanta at the gate
22:40UA 839 to Sydney leaves the gate
13 h 41 apart on the timetable
UA 839 leaves 13 h 41 after DL 996 arrives on the timetable: more than half a day, so not a connection we count.