Leap year officially was accepted in 45 BC so ruffly (exact years between BC and AD are not known, best guess is 33 years for the age of Christ at death) 2088 years. so if every 4 years there is 1 extra day. Without leap years/days the date today (Dec 15 2010) would be 522 days less than what we accept as the date, or July 8 2009.
See its not December but July. the whole idea behind leap year is to keep us aligned in our seasonal/astronomical date.
I personally think the formula is not exactly correct as it should probably be more like mid November but that's just my theory.
Years ago, most of our economy was based upon the farm. Daylight savings provided additional "Daylight" for those working on the farms, in particular those families with children who assisted on the farm.
Daylight saving time has been in effect in the USA since 1918, although its observance has been inconsistent over the years. The current practice of starting daylight saving time on the second Sunday in March and ending it on the first Sunday in November was established in 2007 with the Energy Policy Act.
Alberta first observed Daylight Saving Time in 1918. The practice was initially implemented during World War I as a way to conserve energy. Over the years, the province has adjusted its approach to Daylight Saving Time, with several changes in policies and observance.
Starting in 2007, daylight saving in New Zealand is observed from the last Sunday in September until the first Sunday in April.
Daylight Saving Time (DST) was introduced primarily to make better use of daylight during the longer days of summer. The idea is to shift an hour of daylight from the morning to the evening, thereby conserving energy by reducing the need for artificial lighting. It was first widely implemented during World War I and again in World War II as a wartime measure to save fuel. Over the years, various countries have adopted and modified DST for economic and lifestyle reasons.
Years ago, most of our economy was based upon the farm. Daylight savings provided additional "Daylight" for those working on the farms, in particular those families with children who assisted on the farm.
Daylight saving time has been in effect in the USA since 1918, although its observance has been inconsistent over the years. The current practice of starting daylight saving time on the second Sunday in March and ending it on the first Sunday in November was established in 2007 with the Energy Policy Act.
battery, lighting detector, lighting rod, glass armonica, Pennsylvania fireplace, streetlight and daylight savings
Alberta first observed Daylight Saving Time in 1918. The practice was initially implemented during World War I as a way to conserve energy. Over the years, the province has adjusted its approach to Daylight Saving Time, with several changes in policies and observance.
In the United States and Canada, Daylight Saving Time begins Sunday, March 10, 2013, and ends Sunday, November 03, 2013. In Europe, Daylight Saving Time begins Sunday March 31, 2013 and ends Sunday October 27, 2013. For more years and countries, please see the related question.
Starting in 2007, daylight saving in New Zealand is observed from the last Sunday in September until the first Sunday in April.
Benjamin Franklin suggested the concept of daylight savings time to citizens of Paris to conserve candles by rising earlier to use natural morning sunlight. However daylight savings time as we know it was brought forth by William Willett, who spent much of his life unsuccessfully lobbying for it in London.
Daylight Saving Time (DST) was introduced primarily to make better use of daylight during the longer days of summer. The idea is to shift an hour of daylight from the morning to the evening, thereby conserving energy by reducing the need for artificial lighting. It was first widely implemented during World War I and again in World War II as a wartime measure to save fuel. Over the years, various countries have adopted and modified DST for economic and lifestyle reasons.
Queensland was the first state to reject daylight saving, and as a result, has been subject to many ill-informed jokes and derogatory comments about why Queenslanders rejected daylight saving. It should be noted that Western Australia has also now turned its back on daylight saving, after a trial of several years.
In the United States and Canada, Daylight Saving Time begins Sunday, March 10, 2013, and ends Sunday, November 03, 2013. In Europe, Daylight Saving Time begins Sunday March 31, 2013 and ends Sunday October 27, 2013. For more years and countries, please see the related question.
In five years.
* Daylight Saving Time saves energy. Based on consumption figures for 1974 and 1975, The Department of Transportation says observing Daylight Saving Time in March and April saved the equivalent in energy of 10,000 barrels of oil each day -- a total of 600,000 barrels in each of those two years. California Energy Commission studies confirm a saving of about one percent per day. * Daylight Saving Time saves lives and prevents traffic injuries. The earlier Daylight Saving Time allowed more people to travel home from work and school in daylight, which is much safer than darkness. And except for the months of November through February, Daylight Saving Time does not increase the morning hazard for those going to school and work. * Daylight Saving Time prevents crime. Because people get home from work and school and complete more errands and chores in daylight, Daylight Saving Time also seems to reduce people's exposure to various crimes, which are more common in darkness than in light. www.standardtime.com