Standard Time Zones of the United States and adjacent Parts of Canada and Mexico as of October 1, 1935
Description: One map showing standard time zones of the United States as of October 1, 1935, with an updated map showing new boundaries in Georgia, Ohio, and Michigan. Notes on the first map describe the changes effective September 27, 1936 and November 23, 1941.
Creator: Geological Survey (U.S.)
Item Type: Map
Partner: UNT Libraries Government Documents Department