Daylight saving time (DST) begins each year in March, requiring most regions in the United States to advance clocks by one hour. This shift results in darker mornings and extended daylight in the evening. The practice, initially introduced to conserve energy and optimize daylight use, affects individuals’ circadian rhythms, which regulate sleep patterns. Studies indicate that sleep disturbances caused by DST may persist for weeks. Researchers have discovered a temporary increase in heart attacks, strokes, and traffic accidents following the transition, highlighting potential risks associated with the abrupt change. While the majority of the U.S. observes DST, states such as Hawaii and most of Arizona adhere to standard time throughout the year. Several other countries also implement DST, although start and end dates differ internationally.

Adjusting to daylight saving time requires gradual changes in sleep habits. Sleep experts suggest advancing bedtime by 15 to 20 minutes each night before the transition to mitigate disruptions. Exposure to morning sunlight assists in resetting the body’s internal clock, improving sleep quality and overall health. Research links sleep deprivation to cardiovascular diseases, obesity, and cognitive decline, making consistent rest essential. Legislative efforts to abolish the biannual time adjustment remain a subject of debate, with some proposing permanent DST and others advocating for standard time year-round. Health organizations emphasize that standard time aligns more closely with natural daylight, supporting stable sleep patterns. Until a definitive policy is established, individuals must take proactive steps to minimize the physiological impact of time changes.