Time in Michigan

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All counties in Michigan's Lower Peninsula observe Eastern Time, as do most counties in the state's Upper Peninsula. The U.P. counties that do not, the four counties which have a land border with Wisconsin, are in the Central Time zone.

History

In 1967, when the Uniform Time Act came into effect, the Upper Peninsula went under year-round CST, with no daylight saving time.[1] In 1973, the majority of the peninsula switched to Eastern Time;[2] only the four western counties of Gogebic, Iron, Dickinson, and Menominee continue to observe Central Time.

IANA time zone database

The zone for Michigan as given by zone.tab of the IANA time zone database[3]


c.c. coordinates TZ comments UTC offset UTC offset DST Note
US +421953-0830245 America/Detroit Eastern Time - Michigan - most locations −05:00 −04:00
US +450628-0873651 America/Menominee Central Time - Michigan - Dickinson, Gogebic, Iron & Menominee Counties −06:00 −05:00

References

  1. ↑ "State Constitutions: Referendum Row". Time. July 7, 1967. Retrieved July 25, 2007. 
  2. ↑ Law, Gwillim (February 19, 2007). "United States Time Zones". Statoids. Retrieved July 25, 2007. 
  3. ↑ http://www.iana.org/time-zones

See also

States
Federal district
Washington, D.C.
Insular areas
  • American Samoa
  • Guam
  • Northern Mariana Islands
  • Puerto Rico
  • U.S. Virgin Islands
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