DL 5234 then DL 672 at Atlanta
Knoxville → Atlanta → San Francisco
Timetable, Atlanta time
10:19DL 5234 from Knoxville at the gate
10:15DL 672 to San Francisco leaves the gate
23 h 56 apart on the timetable, overnight
DL 672 leaves 23 h 56 after DL 5234 arrives on the timetable: more than half a day, so not a connection we count.