Is the whole state of Michigan an hour ahead of Illinois?

No. Four Michigan counties on the western edge of the Upper Peninsula are in Central Time, the same as Illinois. The rest of the state is in Eastern Time. read more

Four Michigan counties on the western edge of the Upper Peninsula are in Central Time, the same as Illinois. The rest of the state is in Eastern Time. This page may be out of date. read more

Best Answer: Michigan is in the eastern time zone and Chicago is in the central time zone, so Chicago is one hour ahead of Michigan.In other words 8: 00 in Chicago is 9: 00 in Michigan. read more