UA 3926 then KL 6537 at San Francisco
Newark → San Francisco → Atlanta
Timetable, San Francisco time
22:56UA 3926 from Newark at the gate
14:05KL 6537 to Atlanta leaves the gate
15 h 09 apart on the timetable, overnight
KL 6537 leaves 15 h 09 after UA 3926 arrives on the timetable: more than half a day, so not a connection we count.