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Here’s what to know
NBC News • • nation
Key Points:
- Daylight saving time in the U.S. ends at 2 a.m. on Sunday, with clocks set back one hour, marking the return to standard time until March 14, 2024.
- The practice, established in 1918 to extend daylight hours in summer, has been contested and modified over the years, with some states and territories opting out of the time changes.
- Hawaii, most of Arizona, and several U.S. territories observe permanent standard time and do not change their clocks.
- Although President Trump and others have supported making daylight saving time permanent, health experts warn of potential risks, and federal law currently requires the biannual clock changes.
- Legislative efforts to establish year-round daylight saving time have gained traction in many states, but federal approval is needed, and recent bills like the Sunshine Protection Act have stalled in Congress.
