November 3, at 2:00 am. The Daylight Saving Timing (DST) began on March 10 this year.
During the start of DST, clocks were set forward by one hour at 2:00 a.m., advancing Daylight Saving 2024: The United States returned to standard time on Sunday, to 3:00 a.m. This adjustment, often called “spring forward”, is aimed at extending evening daylight during the warmer months, making outdoor activities more accessible in the evenings.
The shift to “fall back” provides an extra hour of morning sunlight, though it means earlier sunsets as we approach winter, aligning with the changing daylight hours in autumn and winter.
States and territories like Hawaii and most of Arizona, excluding the Navajo Nation, remain on standard time throughout the year.
Additionally, some US territories, including Puerto Rico, Guam, and the Virgin Islands, also do not observe DST, due to their more consistent daylight hours year-round.
What is the purpose of Daylight Saving Time?
DST was introduced as a way to save energy by maximizing daylight during waking hours. It gained widespread adoption in the US during World War I and later in World War II, eventually becoming more standardized in 1966 with the Uniform Time Act.
The primary goal was to reduce the need for artificial lighting in the evenings, thereby conserving energy.
However, the benefits of DST remain debated. Studies indicate mixed effects, with some research questioning energy savings, due to the increased use of air conditioning and other factors.
Additionally, changes in daylight timing have been associated with disruptions in sleep, potential health impacts, and initial confusion with scheduling.
The discussion around DST continues, with some advocating for permanent daylight time or standard time to reduce the twice-yearly clock changes, citing potential health and productivity benefits.
Daylight Saving Time (DST) will officially end in the United States on Sunday, November 3, 2024. At 2 a.m., clocks will “fall back” one hour to 1 a.m., marking the return to Standard Time. This change will apply across most of the U.S. except in states and territories like Hawaii, most of Arizona, Puerto Rico, and Guam, which do not observe DST.
The history of DST in the U.S. dates back to World War I as a means of conserving energy. While there have been recent efforts in 19 states to make DST permanent, congressional approval is still pending. As a result, most Americans continue to adjust their clocks twice a year, a practice often remembered by the phrase “spring forward, fall back.
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