Michigan is all EST, It not like Florida.
Per the Michigan SOS.
Determine the time zone for Michigan?
Most of Michigan is in the United States Eastern Time Zone. Four counties (Gogebic, Iron, Dickinson, and Menominee) in the western Upper Peninsula that share their southern border with the state of Wisconsin are in the United States Central Time Zone. Michigan uses Daylight Savings Time from 2:00 am on the second Sunday in March until 2:00 am on the first Sunday in November.
http://www.michigan.gov/som/0,4669,7-192-41009-2331—,00.html