Many of them are contingent on the states around them also switching. People are tired of switching offsets during the year, but also find more value in the sun

Many of them are contingent on the states around them also switching. People are tired of switching offsets during the year, but also find more value in the sun being up later in the day (6pm is more valuable than 6am). To complicate this, there is Federal regulation that suggests you can't switch to permanent Daylight Saving Time, so instead many states are suggesting a move to permanent Standard Time in the zone to their east. I think it's unlikely that the map will be this complicated after some changes are actually adopted.