This doesn't change anything right now -- it allows the California legislature to pick either PST or PDT: https://votersedge.org/en/ca/ballot/election/area/73/measure... The way it is now Federal law sets standard time zones for each area of the country. California and other western states are in the Pacific Standard time zone. Current law requires the time of each zone to move forward by one hour from early March to…
CA has only a single timezone, the Pacific Timezone.