Overview
- The switch takes effect at 2 a.m. local time on Sunday, March 8, 2026, the earliest possible start under the second‑Sunday rule.
- Hawaii, most of Arizona (except the Navajo Nation) and the territories of Puerto Rico, Guam, American Samoa, the Northern Mariana Islands and the U.S. Virgin Islands do not observe the change.
- Most phones, computers and connected devices will update automatically, while analog clocks and many appliance or car clocks must be set ahead manually.
- Health researchers cite short‑term risks after the spring shift, including a temporary uptick in fatal crashes plus increases reported in heart attacks and strokes, with sleep experts advising earlier bedtimes, morning sunlight and consistent routines to ease the transition.
- Efforts to change the system remain unresolved, with proposals such as the Daylight Act of 2026 (a permanent 30‑minute shift) and renewed Sunshine Protection Act pushes requiring federal action, as states’ year‑round plans cannot take effect without approval.