Beginning on June 15, 1938, when it got streamlined equipment, it ran the 958 miles in 16 hours, departing New York City at 6:00 P.M. Eastern Time and arriving at Chicago's LaSalle Street Station the following morning at 9:00 A.M. Central Time, averaging 60 mph For a few years after World War II the eastward schedule was shortened to 15½ hours.