Nah, the States can’t. What we actually voted for, and I voted for this too, was that if Congress passed a law that enabled States to move to permanent DST, then the legislature is authorized to pass a law to move California to permanent DST. Congress hasn’t acted, and the main guy who was pushing for this isn’t in the legislature anymore, but basically the law did nothing except send a message from Californians saying “yeah, this sounds good, do it.” but technically it was never necessary.