HOME

TheInfoList




A common year starting on Thursday is any non-
leap year A leap year (also known as an intercalary year or wikt:bissextile, bissextile year) is a calendar year that contains an additional day (or, in the case of a lunisolar calendar, a month) added to keep the calendar year synchronized with the astron ...

leap year
(i.e. a year with 365 days) that begins on
Thursday Thursday is the day of the week between Wednesday Wednesday is the day of the week between Tuesday and Thursday. According to international standard ISO 8601 it is the third day of the week. In countries that have Friday as their holiday ...

Thursday
,
1 January January 1 or 1 January is the first day of the year in the Gregorian Calendar The Gregorian calendar is the used in most of the world. It was introduced in October 1582 by as a modification of the , reducing the average year from 365 ...
, and ends on
Thursday Thursday is the day of the week between Wednesday Wednesday is the day of the week between Tuesday and Thursday. According to international standard ISO 8601 it is the third day of the week. In countries that have Friday as their holiday ...

Thursday
,
31 December It is known by a collection of names including: Saint Sylvester's Day Saint Sylvester's Day, also known as Silvester or the Feast of Saint Sylvester, is the day of the feast of Pope Sylvester I, a saint who served as pope (bishop of Rome) fr ...
. Its
dominical letterDominical letters or Sunday letters are a method used to determine the day of the week for particular dates. When using this method, each year is assigned a letter (or pair of letters for leap years) depending on which day of the week the year starts ...
hence is D. The most recent year of such kind was
2015 2015 was designated as: * International Year of Light The International Year of Light and Light-based Technologies 2015 or International Year of Light 2015 (IYL 2015) was a United Nations The United Nations (UN) is an intergovern ...
and the next one will be
2026 This year will mark a quarter of a century into the 3rd millennium and the 21st century. Predicted and scheduled events * January 1 January 1 or 1 January is the first day of the year in the Gregorian Calendar The Gregorian ca ...
in the
Gregorian calendar The Gregorian calendar is the calendar A calendar is a system of organizing days. This is done by giving names to periods of time, typically days, weeks, months and years. A calendar date, date is the designation of a single, speci ...
or, likewise,
2010 2010 was designated as: *International Year of Biodiversity The International Year of Biodiversity (IYB) was a year-long celebration of biological diversity and its importance, taking place internationally in 2010. Coinciding with the dat ...

2010
,
2021 2021 is scheduled to host most major events that were originally scheduled for 2020, including the 2020 CONCACAF Nations League Finals, Eurovision Song Contest 2021, Eurovision Song Contest, UEFA Euro 2020, 2020 Summer Olympics, 2021 Copa Améri ...
and
2027 Predicted and scheduled events * January 1 January 1 or 1 January is the first day of the year in the Gregorian Calendar The Gregorian calendar is the used in most of the world. It was introduced in October 1582 by as a modific ...
in the obsolete
Julian calendar The Julian calendar, proposed by Julius Caesar Gaius Julius Caesar (; 12 July 100 BC – 15 March 44 BC) was a Roman Roman or Romans usually refers to: *Rome, the capital city of Italy *Ancient Rome, Roman civilization from 8th century B ...
, see below for more. This is the only common year with three occurrences of
Friday the 13th Friday the 13th is considered an unlucky day in Western Western may refer to: Places *Western, Nebraska, a village in the US *Western, New York, a town in the US *Western Creek, Tasmania, a locality in Australia *Western Junction, Tasmani ...
: those three in this common year occur in February,
March March is the third month of the year in both the Julian and Gregorian calendar The Gregorian calendar is the calendar A calendar is a system of organizing days. This is done by giving names to periods of time, typically days ...
, and
November November is the eleventh and penultimate month A month is a unit of time, used with calendars, that is approximately as long as a natural orbital period of the Moon; the words ''month'' and ''Moon'' are cognates. The traditional concept arose ...
. Leap years starting on Sunday share this characteristic and with the exception of skipped leap years, a leap year that begins on a Sunday falls exactly three years either side of two consecutive common years starting on Thursday - for example
2012 2012 was designated as: *International Year of Cooperatives2012 was designated as the International Year of Cooperatives by the United Nations General Assembly on 18 December 2009. The designation has honored the use of cooperative organiz ...

2012
between 2009 and 2015. From February until March in this type of year is also the shortest period (one month) that runs between two instances of
Friday the 13th Friday the 13th is considered an unlucky day in Western Western may refer to: Places *Western, Nebraska, a village in the US *Western, New York, a town in the US *Western Creek, Tasmania, a locality in Australia *Western Junction, Tasmani ...
. In this common year, February is rectangular in calendar where weeks start on a Sunday, Martin Luther King Jr. Day is on
January 19 Events Pre-1600 *379 – Emperor Gratian elevates Theodosius I, Flavius Theodosius at Sirmium to ''Augustus (honorific), Augustus'', and gives him authority over all the eastern provinces of the Roman Empire. *649 – Conquest of Kucha: ...
,
Valentine’s Day Valentine's Day, also called Saint Valentine's Day or the Feast of Saint Valentine, is celebrated annually on February 14. It originated as a Christian feast day honoring one or two early Christian martyrs named Saint Valentine and, throu ...
is on a
Saturday Saturday is the day of the week File:Heptagram of the celestial bodies of the weekdays.png, Heptagram of the seven celestial bodies of the week The names of the days of the week in many languages are derived from the names of the classica ...
,
President's Day Washington's Birthday is a federal holiday in the United States celebrated on the third Monday of February in honor of George Washington George Washington (February 22, 1732, 1799) was an American political leader, military general, st ...
is on
February 16 Events Pre-1600 * 1249 – André de Longjumeau, Andrew of Longjumeau is dispatched by Louis IX of France as his ambassador to meet with the Khagan of the Mongol Empire. *1270 – Grand Duchy of Lithuania defeats the Livonian Order in ...
, Saint Patrick’s Day is on a
Tuesday Tuesday is the day of the week File:Heptagram of the celestial bodies of the weekdays.png, Heptagram of the seven celestial bodies of the week The names of the days of the week in many languages are derived from the names of the class ...
,
Memorial Day Memorial Day (originally known as Decoration Day) is a federal holiday in the United States In the United States, a federal holiday is a calendar date that is recognized and designated by the federal government of the United States as a h ...
is on its earliest possible date,
May 25 Events * 567 BC – Servius Tullius Servius Tullius was the Roman mythology, legendary sixth king of Rome, and the second of its Etruscan civilization, Etruscan dynasty. He reigned from 578 to 535 BC. Roman and Greek sources describe his ...
, U.S. Independence Day and
Halloween Halloween or Hallowe'en (a contraction of "All Hallows' evening"), less commonly known as Allhalloween, All Hallows' Eve, or All Saints' Eve, is a celebration observed in many countries on 31 October, the eve of the Western Christian feast o ...

Halloween
are on a Saturday,
Labor Day Labor Day is a federal holiday in the United States In the United States, a federal holiday is a calendar date that is recognized and designated by the federal government of the United States as a holiday. Every year on a U.S. federal holid ...

Labor Day
is on its latest possible date,
September 7 Events * 70 – A Roman army under Titus occupies and plunders Jerusalem Jerusalem (; he, יְרוּשָׁלַיִם ; ar, القُدس (combining the Biblical and common usage Arabic names); grc, Ἱερουσαλήμ/Ἰερ ...
,
Veterans Day Veterans Day (originally known as Armistice Day) is a federal holiday in the United States observed annually on November 11, for honoring military veterans, who are people who have served in the United States Armed Forces The United State ...
is on a
Wednesday Wednesday is the day of the week between Tuesday and Thursday. According to international standard ISO 8601 it is the third day of the week. In countries that have Friday as their holiday and in some Muslim world, Muslim countries, Wednesday ...
,
Thanksgiving Thanksgiving is a national holiday A holiday is a day set aside by Norm (social), custom or by law on which normal activities, especially business or work including school, are suspended or reduced. Generally, holidays are intended to allow ...

Thanksgiving
is on
November 26 Events Pre-1600 * 783 __NOTOC__ Year 783 (Roman numerals, DCCLXXXIII) was a common year starting on Wednesday (link will display the full calendar) of the Julian calendar. The denomination 783 for this year has been used since the early ...
, and
Christmas Christmas is an annual festival commemorating Nativity of Jesus, the birth of Jesus Christ, observed primarily on December 25 as a religious and cultural celebration among billions of people Observance of Christmas by country, around the world ...

Christmas
is on a
Friday Friday is the day of the week between Thursday Thursday is the day of the week between Wednesday Wednesday is the day of the week between Tuesday and Thursday. According to international standard ISO 8601 it is the third day of the wee ...
. This common year is also the only one where
Memorial Day Memorial Day (originally known as Decoration Day) is a federal holiday in the United States In the United States, a federal holiday is a calendar date that is recognized and designated by the federal government of the United States as a h ...
and
Labor Day Labor Day is a federal holiday in the United States In the United States, a federal holiday is a calendar date that is recognized and designated by the federal government of the United States as a holiday. Every year on a U.S. federal holid ...

Labor Day
are not 14 weeks (98 days) apart: they are 15 weeks (105 days) apart in this common year. Leap years starting on Wednesday share this characteristic. Like leap years starting on Wednesday, this common year also has the shortest gap between Halloween (October 31) and the end of Daylight Saving Time in the US (November 1) by one day as of 2007. Prior to 2007, this common year had the longest gap between the end of Daylight Saving Time in the US (October 25) and Halloween by 6 days. Also, Daylight Savings Time begins and ends on their earliest possible dates, March 8 and November 1 respectively, in this common year as of 2007. Daylight Savings Time also ended on its earliest possible date prior to 2007, since the difference between the old and new Daylight Savings Times end dates is 7 days. The last common year when Daylight Savings Time ended on October 25 was 1998, and the first common year when it ended on November 1 is 2009.


Calendars


Applicable years


Gregorian Calendar

In the (currently used) Gregorian calendar, alongside
Tuesday Tuesday is the day of the week File:Heptagram of the celestial bodies of the weekdays.png, Heptagram of the seven celestial bodies of the week The names of the days of the week in many languages are derived from the names of the class ...
, the fourteen types of year (seven common, seven leap) repeat in a 400-year cycle (20871 weeks). Forty-four common years per cycle or exactly 11% start on a Thursday. The 28-year sub-cycle only spans across century years divisible by 400, e.g. 1600, 2000, and 2400.


Julian Calendar

In the now-obsolete Julian calendar, the fourteen types of year (seven common, seven leap) repeat in a 28-year cycle (1461 weeks). A leap year has two adjoining dominical letters (one for January and February and the other for March to December, as 29 February has no letter). This sequence occurs exactly once within a cycle, and every common letter thrice. As the Julian calendar repeats after 28 years that means it will also repeat after 700 years, i.e. 25 cycles. The year's position in the cycle is given by the formula ((year + 8) mod 28) + 1). Years 3, 14 and 20 of the cycle are common years beginning on Thursday. 2017 is year 10 of the cycle. Approximately 10.71% of all years are common years beginning on Thursday.


References

{{DEFAULTSORT:Common Year Starting On Thursday Gregorian calendar Julian calendar Thursday