Background
Federal Law Establishes Daylight Saving Time for Part of the Year. Federal law establishes a standard time zone for each area of the U.S. For example, California and other western states are in the Pacific Standard Time zone. Federal law requires the standard time of each zone to advance by one hour from early March to early November—a period known as Daylight Saving Time (DST). During DST, sunrises and sunsets occur one hour later than they otherwise would. Currently, federal law does not allow states to adopt year-round DST. However, federal law allows states to opt out of DST and remain on standard time all year, as is currently the case in Arizona and Hawaii.
California Voted on DST About 70 Years Ago. In 1949, California voters approved an initiative measure which established DST in California. The Legislature can only make changes to that initiative measure by submitting those changes to the voters for their approval.
Proposition 7 Proposal
Proposition 7 allows the Legislature with a two-thirds vote to change DST (such as by remaining on DST year-round), as long as the change is allowed under federal law. Until any such change, California would maintain the current DST period if Proposition 7 passed.
Source: LAO Analysis of Proposition 7