when does day light saving time end 2018
Daylight saving time Start and end dates vary with location and year. Since 1996, European Summer Time has been observed from the last Sunday in March to the last Sunday in October; previously the rules were not uniform across the European Union.[39] Starting in 2007, most of the United States and Canada observe DST from the second Sunday in March to the first Sunday in November, almost two-thirds of the year.[43] The 2007 U.S. change was part of the Energy Policy Act of 2005; previously, from 1987 through 2006, the start and end dates were the first Sunday in April and the last Sunday in October, and Congress retains the right to go back to the previous dates now that an energy-consumption study has been done.[44] Proponents for permanently retaining November as the month for ending DST point to Halloween as a reason to delay the changeâ€”to provide extra daylight on October 31.
Corona Spectroscopy measurements indicate strong ionization and plasma temperature in excess of 1,000,000 kelvins,[1] much hotter than the surface of the Sun.
Time in the United Kingdom The United Kingdom uses Greenwich Mean Time or Western European Time (UTC) and British Summer Time or Western European Summer Time (UTC+01:00).
Season As noted, a variety of dates are used in different countries to mark the changes of seasons, especially those that are calendar based. These observances are often declared "official" within their respective jurisdictions by the local or national media, even when the weather or climate is contradictory.[20] However they are mainly a matter of custom only, and have not generally been proclaimed by governments north or south of the equator for civil purposes.[21][22] The Met Office in the UK uses a three-month definition, e.g. declaring "spring" to be March, April, and May.[23] At least one researcher writing in the Bulletin of the American Meteorological Society compared various definitions to actual temperature changes, and recommended this three-month definition for general use in the United States.[24]