Clocks across the United States will turn back one hour at 2 a.m. local time on Sunday, November 2, marking the end of daylight saving time (DST) in 2025. The change, affecting roughly 300 million residents in 48 states, aligns with the Uniform Time Act of 1966, which regulates the period from March to November to maximize daylight usage. President Donald Trump has reiterated his stance against biannual time shifts, calling them inconvenient and costly in recent statements, signaling legislative priority after his January inauguration.
The adjustment grants an extra hour of sleep but results in earlier sunsets, shortening evening daylight. Exceptions include Hawaii and most of Arizona, which maintain standard time year-round. This year’s transition falls on the first Sunday of November, one day earlier than in 2024, aligning with regional time zones.
States like Florida and Texas are pushing for permanent DST through local laws, pending federal approval. The shift impacts daily routines, with transportation and technology systems updating to prevent disruptions.
Historical roots of the practice
Daylight saving time originated in Germany in 1916 to conserve energy during World War I. The US adopted it in 1918, with interruptions during peacetime and reinstatements during crises like World War II and the 1973 oil embargo.
Since 2007, DST spans eight months, starting the second Sunday of March. In 2025, it began on March 9 and ends on November 2.
Regional blocs, like Oregon and Washington, advocate for fixed time, while territories like Puerto Rico remain exempt.
Trump’s stance on time changes
In a December 2024 post, Trump called for ending biannual time shifts, labeling them a costly burden. He emphasized Republican efforts to pass legislation post-inauguration in January 2026.
In April 2025, Trump reaffirmed his preference for extended evening daylight, echoing his 2019 position. Public opinion is split, with 2024 polls showing 62% favoring the end of time changes.
The issue remains divisive, with Trump acknowledging challenges in building consensus for a fixed time system.
Economic benefits of DST
Studies highlight a 7% drop in crimes like robberies during extended evening daylight. Retail and tourism sectors benefit from longer outdoor activity hours.
A 2021 survey found 58% of Americans prefer DST for increased evening leisure time. Alignment with Canada and Mexico minimizes trade disruptions.
Energy savings are debated, with minimal lighting reductions offset by higher air-conditioning use. Businesses prepare annual adaptation guides for cross-border operations.
Health and productivity concerns
The American Academy of Sleep Medicine reports a 6% rise in traffic accidents post-DST start, linked to sleep loss. Experts advocate for permanent standard time to align with circadian rhythms.
Congressional reports estimate billions in productivity losses from 2024 transitions. A 2023 study noted 40% of workers experience fatigue in the weeks following the change.
Cardiovascular risks increase during transitions, with sleep disruptions lingering. Critics argue energy savings are negligible, balanced by higher cooling costs.
Legislative efforts in Congress
The Sunshine Protection Act, unanimously passed by the Senate in 2022, proposes permanent DST but stalled in the House due to disagreements on time standardization. In 2025, it gained 45 bipartisan cosponsors, with Trump signaling support in April.
Proposals include a 2026 vote for national standardization, contingent on Republican control. States push for regional time blocs.
- 2021 polls show 75% oppose biannual changes.
- Territories like Guam maintain fixed time.
- European debates, led by Poland for 2027 abolition, influence US discussions.
Analysts predict action in 2026 if prioritized by the administration.
Impacts on daily routines
Public transportation adjusts schedules to match the new time, avoiding urban route delays. Airports, like those in New York, see confusion spikes in international flights during transitions.
Tech companies implement automatic system updates to minimize errors. In commerce, impacts extend to neighboring countries like Brazil, which ended DST in 2019, maintaining a one-hour difference during the US period.
Schools and businesses issue adaptation guidelines, with initial fatigue reported in morning routines. The shortest day occurs on December 21, with polar regions facing up to 24 hours of darkness.