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Map of Standard Time Zones of the United States and Adjacent Parts of Canada and Mexico as of January 1, 1948
Map of the United States and surrounding areas with time zones marked and labeled in red. Bodies of water are marked, with depth marked by hatchures, as well as state lines and major cities..
Date:
January 1, 1948
Creator:
Geological Survey (U.S.)
System:
The UNT Digital Library
Standard Time Zones of the United States and adjacent Parts of Canada and Mexico as of October 1, 1935
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.
Date:
1935
Creator:
Geological Survey (U.S.)
System:
The UNT Digital Library