DL 2919 then MS 9323 at San Francisco
Boston → San Francisco → Washington
Timetable, San Francisco time
23:31DL 2919 from Boston at the gatealso SK 3585, AF 3726, LA 6228
23:20MS 9323 to Washington leaves the gate
23 h 49 apart on the timetable, overnight
MS 9323 leaves 23 h 49 after DL 2919 arrives on the timetable: more than half a day, so not a connection we count.