B6 1859 then WN 3150 at Philadelphia
Boston → Philadelphia → Nashville
Timetable, Philadelphia time
14:45B6 1859 from Boston at the gate
14:30WN 3150 to Nashville leaves the gate
23 h 45 apart on the timetable, overnight
WN 3150 leaves 23 h 45 after B6 1859 arrives on the timetable: more than half a day, so not a connection we count.