NZ 9174 then OZ 9521 at San Francisco
Eugene → San Francisco → Houston
Timetable, San Francisco time
18:16NZ 9174 from Eugene at the gate
16:40OZ 9521 to Houston leaves the gate
22 h 24 apart on the timetable, overnight
OZ 9521 leaves 22 h 24 after NZ 9174 arrives on the timetable: more than half a day, so not a connection we count.