I know some farmers. They aren't basing their schedule on the clock. Most of them work around daylight. I don't know why the clock would impact their work. I thought it was consumer based. More daylight after work, encourages more fiscal activity.If I'm not mistaken, time changes were put in place initially to maximize sunlight for farmers throughout the year. It was useful a long time ago, but it's initial purpose doesn't do much good anymore.