The Southwest Utah Public Health Department recently examined the biological and social impacts of daylight saving time, noting that while the clocks sprang forward on March 8, 2026, many states continue to wait for federal permission to end seasonal shifts.
Legislative efforts for permanent time
In a publication titled "From Dreams to Reality: Daylight Saving Time – Should We Lock the Clock?", the health department noted that 19 states, including Utah, have passed legislation to permanently switch to year-round daylight saving time. However, these states are currently awaiting federal approval, and five bills addressing the issue are being considered in Congress.
Health risks of seasonal shifts
The department highlighted that although daylight saving time was originally adopted during World War I to conserve fuel and coal, studies since the 1960s have not shown a significant decrease in energy consumption. The health organization also noted that research indicates the shift to daylight saving time can temporarily increase risks for heart attacks, strokes, and traffic accidents, with potential long-term links to obesity, diabetes, and depression.
Circadian rhythm and light exposure
The publication discussed the importance of regulating the circadian rhythm through natural light exposure. While moving clocks forward provides more evening sunlight, the department noted that maintaining consistent time year-round could benefit those with sleep disorders by following the natural seasonal rhythm of light.
Locations not observing daylight saving
The health department reminded residents that certain locations, including Arizona, Hawaii, Puerto Rico, American Samoa, Guam, the Northern Mariana Islands, and the U.S. Virgin Islands, do not participate in daylight saving time.
