It said the original five time zones have expanded to nine. The inspector general report said the Transportation Department is responsible for keeping the clock because of the importance of time to travel. This map image could be re-created using vector graphics as an SVG file. Les couleurs sont choisis des conventions du Projet Cartographie du Wikipédia anglais. With the 2019 Fall release of the National Transportation Atlas Database (NTAD), a new map of the nation’s time zones is featured, showing the geographical boundaries of four time zones in the continental U.S. The department’s top lawyer, John Putnam, responded in a memo that officials are fixing the issues and are “developing an official DOT time zone map.” Français : Version de File:Time zone map of the United States 1913.tif couleurisé, montrant les anciens fuseaux horaires aux États Unis de lan 1913. Inspector general investigators presented the findings to the Department of Transportation. “The official boundaries are narratively described with various types of coordinates and geographic features such as lines of longitude, State or county lines, and rivers,” the report stated. For example, one map incorrectly identifies a deviation in Nevada: “Elko County, NV is shown as the location that changed time zones rather than the correct location, the city of West Wendover.” Investigators found no single map accurately showing the boundaries nationwide and said several sources of time information on the DOT website contained errors, such as inaccurately noting the time practices in some localities. The issue came up, the inspector general’s office said, after the US Senate passed legislation this year to end the biannual time turn by making Daylight Saving Time permanent. A person may take knowing the local time for granted, but an official review revealed that there is no single, accurate map showing the nation’s time zones and local observance of Daylight Saving Time.įederal transportation officials are now at work creating an accurate map of the nation’s time zones, according to a report by the inspector general for the Department of Transportation.
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