DL 2956 then CI 5345 at Atlanta
Philadelphia → Atlanta → San Francisco
Timetable, Atlanta time
17:53DL 2956 from Philadelphia at the gate
12:45CI 5345 to San Francisco leaves the gate
18 h 52 apart on the timetable, overnight
CI 5345 leaves 18 h 52 after DL 2956 arrives on the timetable: more than half a day, so not a connection we count.