Now that Indiana has made the switch, however, researchers have found the opposite to be the case. Based on the DOT study, advocates of Indiana DST estimated that the stateвЂ™s residents would save over $7 million in electricity costs each year. The argument in favor of saving energy swayed Indiana, where until 2005, only about 16 percent of counties observed Daylight Saving Time. Department of Transportation study, and found that DST-related energy savings were insignificant, the DOT study continued to influence decisions about Daylight Saving Time. When people are not at home, they don't turn on the appliances and lights.ДЄlthough a 1976 report by the National Bureau of Standards disputed the 1975 U.S. Most people plan outdoor activities in the extra daylight hours. In addition, less electricity was thought to be used because people are home fewer hours during the 'longer' days of spring and summer. So, the rationale was that Daylight Saving Time saves energy for lighting in all seasons of the year, but it saves least during the four darkest months of winter (November, December, January, and February), when the afternoon advantage is offset by the need for lighting because of late sunrise. In spring and fall, the advantage is generally less than one hour. In the winter, the afternoon Daylight Saving Time advantage is offset for many people and businesses by the morning's need for more lighting. However, although 70 percent of Americans rose before 7:00 a.m., this waste of energy from having less sunlight in the morning was more than offset by the savings of energy that results from more sunlight in the evening. In the summer, people who rose before the sun rises used more energy in the morning than if DST were not in effect. By moving the clock ahead one hour, the amount of electricity consumed each day decreased.

A good percentage of energy consumed by lighting and appliances occurred in the evening when families were home. In the average home, 25 percent of electricity was used for lighting and small appliances, such as TVs and stereos. The rationale behind the 1975 study of DST-related energy savings was that energy use and the demand for electricity for lighting homes is directly related to the times when people go to bed at night and rise in the morning. In the first week, peak evening consumption commonly drops around five percent. Similarly, in New Zealand, power companies have found that power usage decreases 3.5 percent when daylight saving starts.

Department of Transportation in 1975 showed that Daylight Saving Time trims the entire country's electricity usage by a small but significant amount, about one percent each day, because less electricity is used for lighting and appliances. Indeed, some say that the primary reason that Daylight Saving Time is a part of many societies is simply because people like to enjoy long summer evenings, and that reasons such as energy conservation are merely rationalizations.ДЄccording to some sources, DST saves energy. Department of Transportation indicated that Americans liked Daylight Saving Time because 'there is more light in the evenings / can do more in the evenings.' A 1976 survey of 2.7 million citizens in New South Wales, Australia, found 68% liked daylight saving. Thus, Daylight Saving Time (Summer Time) is usually not helpful in the tropics, and countries near the equator generally do not change their clocks.ДЄ poll conducted by the U.S. The closer you live to the North or South Pole, the longer the period of daylight in the summer. But elsewhere on Earth, there is much more daylight in the summer than in the winter. If you live near the equator, day and night are nearly the same length (12 hours). Glide your cursor over the map to see how changing the clocks affects different latitudes. We change our clocks during the summer months to move an hour of daylight from the morning to the evening. The main purpose of Daylight Saving Time (called 'Summer Time' in many places in the world) is to make better use of daylight.

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