Contrary to popular belief Daylight Saving Time has nothing to do with farmers. It was introduced in the United States during World War 1 as a means to save coal used for heating homes. Today most states in the US still follow Daylight Saving Time, although there are efforts in some, like Minnesota, to get rid of the time shift.
The company compared the 150 most populated U.S. cities plus at least two of the most populated cities in each state and graded them based on numerous factors.