DL 2547 then CI 5345 at Atlanta
Grand Rapids → Atlanta → San Francisco
Timetable, Atlanta time
15:43DL 2547 from Grand Rapids at the gate
12:45CI 5345 to San Francisco leaves the gate
21 h 02 apart on the timetable, overnight
CI 5345 leaves 21 h 02 after DL 2547 arrives on the timetable: more than half a day, so not a connection we count.