On the early morning of Sunday, March 9, the United States kicked off daylight saving time, with clocks moving forward one hour at 2 a.m. The shift, marking the start of Daylight Saving Time (DST), will cost most Americans an hour of sleep but ensure later sunsets until November 2. Amid this annual adjustment, President Donald Trump recently softened his stance on abolishing the practice, calling it a “50-50 issue” during remarks in the Oval Office. The change comes as debates over the effects of daylight saving time on health, economy, and quality of life gain traction, reviving discussions that have spanned decades in the country.
The practice, observed in 48 U.S. states—excluding Hawaii and Arizona—began as a wartime measure in 1918 and was standardized nationwide in 1966 under the Uniform Time Act. Trump, who in December pledged Republican efforts to end daylight saving time via Truth Social, now appears less decisive. He noted that opinions split evenly between those favoring extra evening light and those concerned about dark mornings, particularly for school commutes. Any policy shift, however, would require Congressional approval, a hurdle unmet since the stalled Sunshine Protection Act of 2022.
Elon Musk, a prominent Trump adviser, also weighed in. On the Wednesday prior, he posted a poll on X asking Americans their preference if DST were scrapped. Of the respondents, 58.1% favored keeping clocks an hour ahead, while 41.9% opted for an hour earlier. The issue, impacting over 300 million people across the U.S., continues to polarize opinions and spark legislative proposals, yet no clear consensus for immediate change has emerged.
Trump backs off promise to end daylight saving time
Donald Trump has dialed back his earlier commitment to eliminating daylight saving time. Speaking in the Oval Office on Thursday, March 6, he described the matter as evenly split, with half the population preferring later daylight and the other half worried about dark mornings, especially for parents with school-aged kids. “If it’s 50-50, it’s hard to get excited about it,” Trump said, suggesting the issue isn’t a priority despite his ability to push it forward with Congressional backing.
Just months earlier, in December, Trump labeled DST “inconvenient” and “costly” to the nation, vowing that Republicans would work to abolish it. This shift in rhetoric comes days before the annual clock change, which disrupts the daily lives of millions. In recent years, at least 19 states have introduced bills to either make DST permanent or revert to standard time, but all hinge on federal action that remains elusive.
Trump’s hesitation mirrors the topic’s complexity. Proponents highlight energy savings and extended daylight after work hours, while critics cite health drawbacks, including heightened risks of heart issues and traffic accidents post-shift. The deadlock preserves the biannual clock adjustments, a tradition enduring despite growing opposition.
What changes with daylight saving time’s start
The switch to daylight saving time took effect at 2 a.m. on Sunday, March 9, when clocks jumped forward to 3 a.m. across the U.S. This adjustment, occurring annually on the second Sunday of March, extends daylight into the evening until the first Sunday of November, when clocks revert to standard time. In 2025, DST will conclude on November 2, spanning nearly eight months.
For states following the practice, sunrise and sunset now occur an hour later, offering longer, brighter afternoons. In cities like New York, for instance, sunset shifts from around 6 p.m. in standard time to 7 p.m. under DST. The change alters daily routines—work schedules, public transit, and school hours—while requiring updates to non-automatic clocks and devices.
Hawaii and Arizona opt out of DST for distinct reasons. Hawaii, near the equator, sees little daylight variation year-round, rendering the shift unnecessary. Arizona, with its desert climate, skips DST to avoid extended evening heat, though the Navajo Nation within its borders follows the national schedule. These exceptions underscore how geography shapes the policy’s application across the U.S.
Origins and controversies of daylight saving time
Daylight saving time debuted in the U.S. in 1918 during World War I to conserve energy by maximizing daylight. Repealed shortly after, it returned as a national policy in 1966 via the Uniform Time Act, standardizing its start and end dates. Adjustments followed—the most recent in 2007, extending DST by four weeks. Today, about 70 countries worldwide implement some form of DST, but in the U.S., its relevance remains hotly debated.
Opponents argue that energy savings are negligible in modern times, while health impacts loom large. Research links the time shift to a 6% spike in traffic accidents in the following week and an 11% rise in heart attacks the Monday after DST begins. Supporters counter that DST cuts electricity use by roughly 0.5% daily and enhances quality of life with more evening sunlight for outdoor activities.
Legislative efforts to overhaul the system have gained momentum. In 2022, the U.S. Senate passed the Sunshine Protection Act to make DST permanent, eliminating the standard time switch, but the House never voted on it. States like California, Florida, and Texas await federal approval to enact local changes, highlighting regional divides in preferences.
Daylight saving time 2025 schedule
The U.S. adheres to a fixed DST calendar each year. Here are the key dates for 2025:
- Start: March 9 at 2 a.m., when clocks advance to 3 a.m.
- End: November 2 at 2 a.m., when clocks fall back to 1 a.m., reverting to standard time.
- Duration: 238 days, or about 65% of the year, under DST.
These dates affect over 300 million people across 48 states and territories observing DST. The transition demands precision in industries like aviation, technology, and finance, where global time synchronization is critical.
Public debate heats up with Musk and Trump
Elon Musk stirred the DST conversation by polling Americans on X on March 5. Of those who responded, 58.1% favored keeping clocks permanently an hour ahead, while 41.9% preferred an hour earlier, ending seasonal shifts. Though informal, the survey echoes the split Trump referenced, with preferences nearly evenly divided. Musk, whose stance remains unclear, wields significant sway as a Trump confidant and could elevate the issue politically.
Trump’s reluctance to act contrasts with his December pledge to scrap DST, which he then criticized as a costly burden with a “small but strong constituency.” His recent neutrality, voiced in the Oval Office, aligns with legislative gridlock, leaving Congress as the linchpin for change. The closest the U.S. came to reform was in 2022, but House inaction stalled progress.
High-profile voices like Musk and Trump keep DST in the public eye. For now, Americans adjust their clocks and lives to a practice that, though contentious, holds firm in 2025.
Everyday impacts of daylight saving time
The onset of DST brings immediate shifts to American life. Losing an hour of sleep overnight from March 8 to 9 can dampen productivity the following Monday, a phenomenon dubbed “social jet lag.” On the flip side, sunsets around 7 p.m. nationwide encourage outdoor pursuits like sports and walks, especially in regions emerging from winter.
Economic sectors feel the ripple effects. Retail and dining often see upticks as longer evenings draw people out, while electricity use dips slightly with less need for artificial lighting. In transportation, airlines and railways tweak schedules to avoid confusion, particularly for international routes spanning time zones. In non-DST states like Hawaii and Arizona, the time gap with the rest of the U.S. widens by an hour during these months.
Daylight saving time facts in the US
Here are some notable tidbits about DST in the country:
- First use: In 1918, DST lasted just seven months before repeal.
- Health concerns: The American Medical Association backs ending DST, citing heart risks and mood disorders.
- Energy debate: Studies peg DST’s annual energy savings at a mere 0.03% of total U.S. usage.
- Regional push: Since 2018, 19 states have proposed laws to ditch clock changes.
These insights reveal how DST, a longstanding tradition, remains a lightning rod for controversy and reform efforts.
