DL 3863 then CI 5345 at Atlanta
Marsh Harbour → Atlanta → San Francisco
Timetable, Atlanta time
15:26DL 3863 from Marsh Harbour at the gate
12:45CI 5345 to San Francisco leaves the gate
21 h 19 apart on the timetable, overnight
CI 5345 leaves 21 h 19 after DL 3863 arrives on the timetable: more than half a day, so not a connection we count.