@Just-Lisa-Now-  California liked DST so much that in 2018 they voted to keep it year-round.  But federal law preempted that.  You can have standard time all year, you just can't have daylight time all year.

If China can have only one time zone, why can't we limit ours to two?  Eastern Time and Western Time.  Makes Election Night a lot easier to follow, and stockbrokers on the West Coast (and in Arizona) don't have to start work at 6:30 a.m.

 "Who is in favor of daylight saving time, then? According to Michael Downing, a Tufts University professor and author of the 2005 book Spring Forward: The Annual Madness of Daylight Saving Time, the real masterminds behind daylight saving time are business interests.

“What we don't tend to know as Americans is that the biggest lobby on behalf of daylight saving since 1915 in this country—and to this very day—is the Chamber of Commerce,” Downing said in a 2015 video. (Downing passed away due to cancer in February of 2021.) “They understood something very early on. If you give workers daylight, when they leave their jobs, they are much more apt to stop and shop on their way home.”

Recreational industries have also been ardent backers of daylight saving time, according to Downing’s reporting. The golf industry claimed that DST was worth $200 million in additional revenue per year, while the industrial forces behind barbecuing estimate their annual daylight saving payout at $100 million, according to Downing."

https://californialocal.com/localnews/statewide/ca/article/show/896-daylight-saving-time-california/