A common year is a common type of calendar year. According to the Gregorian calendar, the calendar year begins on January 1 and ends on December 31. It has exactly 365 days and so is not a leap year. A leap year (or intercalary year) is a year containing one or more extra days (or in the case of Lunisolar calendars an extra month in order to keep the More generally, it is a calendar year without intercalation. Intercalation is the insertion of a leap day week or month into some calendar years to make the calendar follow the seasons or moon phases

A common year of 365 days has exactly 52 weeks and one day, so consequently the next new year is one day of the week later. A week (also called sennight or sevennight) is a unit of Time longer than a Day and shorter than a Month.

• 2005 began on a Saturday. Year 2005 ( MMV) was a Common year starting on Saturday (link displays full calendar of the Gregorian calendar. This is the Calendar for any Common year starting on Saturday ( Dominical letter B) Saturday is the day of the week between Friday and Sunday. It is either the sixth or seventh Day of the week as discussed below.
• 2006 began on a Sunday. Year 2006 ( MMVI) was a Common year starting on Sunday of the Gregorian calendar. This is the calendar for any Common year starting on Sunday ( Dominical letter A) or for any year in which “ Doomsday ” is Tuesday Sunday is the day of the week between Saturday and Monday. In the Jewish law it is the first day of the Hebrew calendar week
• 2007 began on a Monday. Year 2007 ( MMVII) was a Common year starting on Monday of the Gregorian calendar in the 21st century. This is the Calendar for any common year starting on Monday ( Dominical letter G) Monday (pron ˈmʌndeɪ ˈmʌndi is a Day of the week between Sunday and Tuesday.
• 2008, a leap year, began on a Tuesday. 2008 ( MMVIII) is the current year in accordance with the Gregorian calendar, a Leap year that started on Tuesday of the Common A leap year (or intercalary year) is a year containing one or more extra days (or in the case of Lunisolar calendars an extra month in order to keep the This is the Calendar for any Leap year starting on Tuesday ( Dominical letter FE) such as 2008. Tuesday is the third Day of the week between Monday and Wednesday.
• 2009 will begin on a Thursday. This article is about the year For the film see 2009 Lost Memories. This is the Calendar for any Common year starting on Thursday ( Dominical letter D) Thursday is the fourth day of the week in most western countries and the fourth day of the week in the Judeo-Christian Calendar, falling between Wednesday
• 2010 will begin on a Friday. For the film see 2010 The Year We Make Contact. For the book see 2010 Odyssey Two. This is the Calendar for any Common year starting on Friday ( Dominical letter C) Friday (pronunciation ˈfraɪdeɪ ˈfraɪdi is the day of the Week falling between Thursday and Saturday.
• 2011 will begin on a Saturday

In the Gregorian calendar, 303 of every 400 years are common years. 2011 ( MMXI) will be a Common year starting on Saturday of the Gregorian calendar. This is the Calendar for any Common year starting on Saturday ( Dominical letter B) The Gregorian calendar is the most widely used Calendar in the world today By comparison, in the Julian calendar, 300 out of every 400 years were common years. The Julian calendar, a reform of the Roman calendar, was introduced by Julius Caesar in 46 BC and came into force in 45 BC (709 Ab urbe condita

This standards- or measurement-related article is a stub. Standardization (or standardisation) is the process of developing and agreeing upon technical standards. Measurement is the process of estimating the magnitude of some attribute of an object such as its length or weight relative to some standard ( unit of measurement) such as You can help Wikipedia by expanding it.