Step 1 : Introduction to the question "If it is 9 A.M. Eastern Time in New York City, what time is it locally in Detroit, Michigan?"
Both Detroit, Michigan and New York City are in the Eastern Time Zone. In fact, most of Michigan is in the Eastern Time Zone. Only 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 (DST) on the second Sunday in March until 2:00 am on the first Sunday in November. At 2 a.m., all but two states jumped forward to 3 a.m. Arizona and Hawaii do not observe DST.