why do we fall back an hour

Each year, in the
hours of a Sunday morning in March, 60 minutes from the clock and the reappears each year in November! No, it's not a magic trick в it's Saving! Saving (or в," as it's known in many parts of the world) was created to make better use of the sunlight hours of the summer. By в " clocks forward an in, we move an of from the morning to the evening. On the first Sunday in, we в back" and rewind our clocks to return to Standard. But where did Saving come from? And how is it useful? The idea was first suggested in an essay by in 1784, and later proposed to British Parliament by Englishman William Willett 1907. However, it did not become a standard practice in the United States until 1966. Saving was originally instituted in the United States during World War I and World War II in order to take of longer hours and save energy for the war production.

In the years after World War II, individual states and communities decided whether they wanted to continue observing Saving and when to do so. This meant some cities were an behind others even though they were only separated by a few miles on a map. In order to minimize the confusion, passed the Uniform Act in 1966, which standardized the length of Saving for the country. Saving is most helpful to those who live farther from the equator, where hours are much longer in the summer than in the winter. In locations closer to the equator, hours and nighttime hours are nearly the same in length throughout the year. That's why many cities and countries do not participate in Saving.

In the United States, there are only a few places that do not observe Saving, including parts of Arizona, Hawaii, Puerto Rico, the U. S. Virgin Islands and American Samoa. There are currently about 70 countries that participate in Saving, though not necessarily on the same schedule as the United States. who recognizes Saving and when can sound like a very complicated math word problem. In Europe, Saving runs from the last Sunday in March through the first Sunday in October. In the southern, where the summer season begins in December, Saving is recognized from December through March. Kyrgyzstan and observe Saving year-round; countries do not observe Saving at all. Advocates in support of Saving suggest that in addition to reducing crime and automobile accidents, extended hours also improve energy by allowing people to use less energy to light their businesses and homes. studies argue the energy saved during Saving is offset by greater energy use during the darker and months.

Daylight saving time is based on the assumption that it saves energy. The 2007 changes sparked a national debate on the topic. Angela Webber of The Oregonian one performed by the California Energy Commission and one by the National Bureau of Economic Research (NBER) that found that daylight saving time does not save energy. In fact, according to the, Our main finding is that contrary to the policy s intent DST increases residential electricity demand. Both studies found that the energy people save from not using as much power at night is offset by the increased energy used during the darker mornings of autumn.

Daylight saving time also because the extra evening hour encourages Americans to leave the house and drive somewhere, explains Michael Downing, author of , to NPR. The extension of daylight saving time, he argues, was instituted to benefit retailers; When we have an hour of sunlight after work, Americans tend to go shopping, he said. In addition, candy producers pushed for DST to end after Halloween so trick-or-treaters would have an extra hour of daylight. Still, there are some benefits associated with daylight saving time. According to National Geographic News, traffic accidents and traffic fatalities. In 1986, Congress found other advantages, such as more daylight outdoor playtime for children, as well as greater utilization of parks and recreation areas, expanded economic opportunity through extension of daylight hours to peak shopping hours and through extension of domestic office hours to periods of greater overlap with the European Economic Community.

But not everyone agrees that more daylight in the evening is a bonus. As Mosley points out, farmers and other early birds that get up before the sun may have to operate in the dark a while longer before daybreak. That was the case when Emergency Daylight Saving Time Energy Conservation Act of 1973 took effect on Jan. 6, 1974. Millions of people found themselves , Time magazine reported at the time. A surge of traffic accidents involving children going to school in the dark was reported, along with a number of other calamities.