House Passes Sunshine Protection Act of 2025, Sending Permanent Daylight Saving Time Bill to Senate

Sponsored by Rep. Buchanan, Vern [R-FL-16] · 35 cosponsors

Plain-English Summary

Sunshine Protection Act of 2025 This bill makes daylight saving time the new, permanent standard time. States with areas exempt from daylight saving time may choose the standard time for those areas.

Current Status

Received in the Senate and Read twice and referred to the Committee on Commerce, Science, and Transportation.

What Problem This Addresses

Analysis: The bill appears intended to address the disruptions associated with twice-yearly clock changes, including reported effects on sleep, public health, productivity, and scheduling. The sponsor and supporters argue that permanently adopting daylight saving time would eliminate these transition-related harms and provide more consistent evening daylight hours. This characterization of the problem is drawn from the bill's stated purpose and common legislative arguments in its favor, and is not independently verified as fact here.

Outlook

As of July 15, 2026, HR 139 has passed the House by a substantial bipartisan margin of 308-117 and has been received by the Senate, where it was read twice and referred to the Committee on Commerce, Science, and Transportation. The bill has not yet been scheduled for a Senate committee hearing, markup, or floor vote. Analysis and prediction, not certainty: The strong House vote suggests meaningful bipartisan support, which may improve Senate prospects. However, Senate committees frequently hold bills without bringing them to the floor, and the Senate has previously failed to advance similar permanent daylight saving time legislation (the Sunshine Protection Act passed the Senate unanimously in 2022 but stalled in the House that session). Senate passage is plausible but not assured; the committee referral stage represents a significant procedural hurdle.

Arguments From Supporters

Supporters argue that eliminating the biannual clock change would reduce disruptions to sleep patterns and associated public health risks, including studies linking the spring transition to temporary increases in heart attacks, strokes, and accidents. They contend that permanent daylight saving time maximizes usable evening daylight, benefiting retail, recreation, and tourism industries. Supporters also emphasize the broad popularity of ending clock changes among the American public and point to the strong, bipartisan 308-117 House vote as evidence of wide legislative consensus.

Arguments From Opponents

Opponents of permanent daylight saving time — as distinct from permanent standard time — argue that locking in daylight saving time means winter mornings would remain dark later, which critics contend poses safety risks for children traveling to school and workers commuting in darkness, particularly in northern and western portions of time zones. Some sleep researchers and medical groups have argued that permanent standard time, not permanent daylight saving time, better aligns with human circadian biology and natural light cycles. Opponents of any permanent-time legislation may also raise concerns about coordination with neighboring countries and impacts on international commerce and travel scheduling. Note: The action history does not document specific organized opposition groups or formal statements; these arguments reflect positions commonly associated with critics of this policy approach.

Where Both Sides Agree

Both supporters and most opponents of this specific bill appear to broadly agree that the twice-yearly practice of changing clocks is disruptive and should be ended. The central disagreement is not whether to stop changing clocks, but which time — daylight saving time or standard time — should be made permanent.

Core Disagreement

The core dispute is whether permanent daylight saving time or permanent standard time is the preferable outcome. Supporters of this bill favor locking in the later-sunset schedule of daylight saving time for its economic and lifestyle benefits. Critics, particularly some in the public health and sleep science communities, favor permanent standard time as more compatible with natural daylight and human biology. A secondary disagreement involves the state exemption provision, which allows states currently exempt from daylight saving time to choose their own permanent time, raising questions about regional consistency.

Constitutional Basis Cited

Sponsor Rep. Buchanan cited Article I, Section 8 of the U.S. Constitution as the authority for this legislation. Article I, Section 8 enumerates various powers of Congress, including the commerce power, which has historically been the basis for federal regulation of time zones and daylight saving time under statutes such as the Uniform Time Act of 1966. No specific clause within Article I, Section 8 was identified in the cited Congressional Record entry. This article does not assert a legal conclusion about the sufficiency or scope of this constitutional basis.

Economic Considerations

Analysis, not established fact — no Congressional Budget Office score is cited or available for this summary: Permanent daylight saving time is commonly associated in economic commentary with potential benefits to retail, restaurant, outdoor recreation, and tourism sectors due to extended evening daylight. Some analysts have suggested possible energy use implications, though research findings on net energy impact have been mixed. Transition costs for industries dependent on time synchronization, such as aviation, broadcasting, and financial markets, are sometimes cited as a consideration. The state exemption provision could create localized economic effects in border regions between differently-timed states. All economic projections should be treated as speculative absent a formal scored estimate.

Sections beyond the plain-English summary are AI-synthesized analysis based on the sourced legislative record from Congress.gov, not independently verified fact.