Why States Still Can’t Make Daylight Saving Time Permanent Without Congress
The debate over daylight saving time returns every year as millions of Americans adjust their clocks in the spring and fall. While many people question why the United States still changes its clocks twice a year, the answer is tied to federal law. Even though several states have voted in favour of keeping daylight saving time year-round, they cannot make that change on their own under current law.
Across the country, lawmakers have introduced legislation aimed at ending the twice-yearly clock change. Supporters argue that permanent daylight saving time would provide more evening daylight, reduce disruptions caused by changing the clocks, and simplify daily routines. However, despite growing support at the state level, the final decision remains in the hands of Congress.
At present, daylight saving time begins on the second Sunday in March, when clocks move forward by one hour. It ends on the first Sunday in November, when clocks are turned back to standard time. During daylight saving time, the sun sets later in the evening, while mornings become darker. Standard time has the opposite effect, with earlier sunrises and earlier sunsets.
Many states have already taken steps to prepare for a possible national change. In total, 19 states have passed laws or resolutions that would allow them to adopt permanent daylight saving time if Congress gives approval. These measures, however, cannot take effect unless federal law is changed.
The proposal receiving the most attention in Washington is the Sunshine Protection Act. The legislation would make daylight saving time permanent across most of the United States and eliminate the need to change clocks twice each year. Although the bill has previously passed the U.S. Senate, it has not completed the legislative process because it still requires approval by the House of Representatives before it can become law.
The reason states cannot act independently is rooted in the Uniform Time Act of 1966, which established national rules for time zones and seasonal clock changes. While the law has been updated over the years, it continues to give the federal government authority over daylight saving time policy.
Federal law does allow one important exception. States may choose to remain on standard time throughout the entire year if they decide not to observe daylight saving time. Arizona, with the exception of the Navajo Nation, follows this approach. Hawaii also remains on standard time year-round. However, no state has the legal authority to stay on daylight saving time permanently without approval from Congress.
The current schedule for daylight saving time was created through the Energy Policy Act of 2005. That law extended the daylight saving period by moving its start date earlier in the spring and its end date later into the fall. Before those changes, Americans began daylight saving time in April and returned to standard time in October.
Public opinion on the issue remains divided. Many Americans favour ending the clock changes altogether, but there is less agreement on whether the country should stay on daylight saving time or standard time permanently. Health experts, transportation officials, businesses, and education groups have all offered different views based on how the change could affect sleep, safety, school schedules, and economic activity.
Supporters of permanent daylight saving time point to longer evening daylight as a benefit for outdoor recreation, shopping, and some businesses. Others believe eliminating the seasonal clock change could reduce confusion and improve daily routines. Critics, however, warn that darker winter mornings could affect commuters, students, and workers who begin their day before sunrise.
For now, Americans should expect the current schedule to remain in place unless Congress passes new legislation and it is signed into law. Until that happens, states that want permanent daylight saving time must continue waiting for federal action, even if they have already approved the change through their own legislatures.
As discussions continue in Washington, the future of daylight saving time remains uncertain. What is clear is that individual states cannot permanently adopt daylight saving time on their own under existing federal law, making congressional action the key step for any nationwide change.
Sources
- U.S. Congress
- U.S. Department of Transportation
- National Institute of Standards and Technology (NIST)
- Office of the Law Revision Counsel, United States Code
- Arizona State Government
- State of Hawaii Government
