Overview
- Most Americans set clocks back one hour at 2 a.m. Sunday, returning to standard time until March 8, 2026.
- Hawaii, most of Arizona, and U.S. territories including Puerto Rico and Guam stay on standard time year‑round and do not change clocks.
- A new push to make daylight saving time permanent collapsed this week when Sen. Tom Cotton blocked fast‑tracking of the Sunshine Protection Act, leaving earlier Senate passage in 2022 without House action.
- Under the Uniform Time Act, states may choose permanent standard time but cannot adopt permanent daylight saving time without Congressional approval, though roughly 19 states have passed contingent laws awaiting that authorization.
- Health groups urge limiting disruption by getting morning sunlight and keeping regular bedtimes, and many experts favor permanent standard time as studies link clock switches to short‑term risks like traffic crashes and cardiovascular events.