how much daylight is gained per day
Some people think Alaska has less sunlight than other places. The opposite is true. Averaged over an entire year, Alaska gets 10-17 minutes more daylight per day than the rest of the country. If you include civil twilight, Alaska gets 40 minutes more light on average than the rest of the country.
The idea behind daylight saving time is to take advantage of daylight hours and save energy. According to a 2008 federal Department of Energy study, U.S. electricity use decreased by 0.5% for each day of extended daylight saving time, resulting in a savings of 0.03% for the year as a whole, KING-TV, Seattle, reported. The savings are small in percentage terms, but in absolute terms, they added up to 1.3 billion kilowatt-hours â enough to power about 122,000 average U.S. homes for a year.