Summary (tl;dr)

The U.S. House of Representatives has passed the Sunshine Protection Act, a bill that would make Daylight Saving Time permanent across the nation, effectively ending the biannual practice of changing clocks.

Essential Background

Daylight Saving Time (DST) is the practice of advancing clocks by one hour during warmer months to extend daylight into the evening. First implemented in the U.S. in 1918 and formalized by the Uniform Time Act of 1966, most American states observe DST, "springing forward" in March and "falling back" to standard time in November. While federal law allows states like Hawaii and most of Arizona to opt out and remain on permanent standard time, it currently prohibits states from permanently observing Daylight Saving Time. In recent years, numerous states have introduced legislation advocating for year-round DST, contingent on a change in federal law.

The Full Story

On July 14, 2026, the U.S. House of Representatives approved H.R. 139, known as the Sunshine Protection Act, in a bipartisan 308-117 vote. This legislation seeks to establish permanent Daylight Saving Time throughout the United States, thereby eliminating the need to adjust clocks twice a year. The bill now advances to the Senate for consideration, following a similar measure that passed the Senate in 2022 but was not enacted by the House at that time. The effort to "lock the clock" has also received support from President Donald Trump.

Why It Matters

Proponents argue that permanent Daylight Saving Time would offer greater consistency, provide more usable daylight in the evenings, and eliminate the disruptions caused by biannual clock changes, potentially boosting economic activity, enhancing public safety, and promoting healthier, more active lifestyles. Conversely, medical groups, including the American Academy of Sleep Medicine, contend that year-round DST is misaligned with natural human circadian rhythms, advocating instead for permanent standard time. Concerns also exist regarding later sunrises in winter, which could mean children commuting to school in the dark. Public opinion on the issue is divided, with many Americans favoring an end to clock changes but differing on whether to adopt permanent DST or permanent standard time.

Geographic Location

• Capitol Building, Washington, D.C., District of Columbia, United States (U.S. House of Representatives passes Sunshine Protection Act)