NZ 9172 then TK 9591 at San Francisco
Eugene → San Francisco → Las Vegas
Timetable, San Francisco time
21:05NZ 9172 from Eugene at the gate
19:00TK 9591 to Las Vegas leaves the gate
21 h 55 apart on the timetable, overnight
TK 9591 leaves 21 h 55 after NZ 9172 arrives on the timetable: more than half a day, so not a connection we count.