House passes bill to make daylight saving time permanent – what is the Sunshine Protection Act?

The US House passed the Sunshine Protection Act in a 308-117 bipartisan vote to make daylight saving time permanent, ending twice-yearly clock changes.
The bill still requires Senate approval to become law; President Donald Trump publicly backed the proposal, calling clock changes 'ridiculous.'
If enacted, most US states would keep daylight saving time year-round, with no spring-forward or fall-back, but states not observing year-round DST or adopting permanent standard time before the law's modification may opt out.
Florida Representatives Vern Buchanan, Anna Paulina Luna, and Gus Bilirakis led the push; Senator Tom Cotton opposes the bill.
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