DL 3725 then DL 9891 at LAX
Boise → Los Angeles → Sydney
Timetable, Los Angeles time
09:10DL 3725 from Boise at the gate
09:00DL 9891 to Sydney leaves the gate
23 h 50 apart on the timetable, overnight
DL 9891 leaves 23 h 50 after DL 3725 arrives on the timetable: more than half a day, so not a connection we count.