Time in Michigan

Before time zones were introduced, every place used local observation of the sun to set their clocks, which means they used local mean time, every city different based on their longitude.

Time zones were introduced in the United States in 1883.

They were introduced in different years based on local decisions.

Michigan adopted Central Standard Time throughout the state effective September 18, 1885.

[6] In 1973, the majority of the peninsula switched to Eastern Time;[7] only the four western counties of Gogebic, Iron, Dickinson, and Menominee continue to observe Central Time.