Indiana used to be the worst. The whole state was officially in Central from 1918 to 1961. Some places didn't respect that, the unofficially went with Eastern. Some even observed Daylight Savings.
Then 1960s arrived, and along with rock and roll, flower children, Vietnam, and The Great Society, most of Indiana officially switched to Eastern. Some did the Daylight Savings thing, some didn't.
The switch was rough for awhile, because eventually 82 counties observed Eastern, and then 10 Counties in northwest and southwest were Central. Finally, stability.
Well, it's not always 10. Sometimes 1 or 2 counties would jump in the Central time zone and then leave. They can't make up there mind!
But wait! For the longest time, the 80-82 Indiana counties in the Eastern counties did not observe daylight savings time. They never changed the clocks. Central always did Daylight Savings. In the summertime, all of Indiana was in the same time zone when Central jumped forward. In the winter, the Eastern/Central time difference was observed.
But wait! A few of the counties near Louisville and Cincinnati observed Daylight Savings with the rest of the Eastern time zone. If you're commuting across the Ohio River to the big city, don't you want to be on the same time?
Then Mitch Daniels came along. A businessman that could solve problems and deliver. There were some rough patches in 2006 and 2007 figuring out exactly which counties fit best in Eastern or Central.
But My Man Mitch eventually solved the problem of Indiana's time zones. 10 counties in Central, 82 in Eastern, and Daylight Savings for everybody!
For your enjoyment:
https://en.wikipedia.org/wiki/Time_in_Indiana
