I believe that's already an option, but few/none have chosen it. Currently, the two legal options federally are no DST or DST half the year. There are a couple

I believe that's already an option, but few/none have chosen it. Currently, the two legal options federally are no DST or DST half the year. There are a couple states that have passed laws for permanent DST but are waiting on a federal law before it can be enacted.