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Calendar year with a day (or month) added
the seasons. By inserting an additional day—a leap day—or an additional month—a leap month—into some years but not others, the drift between a civilisation's
Leap_year
2001 American TV series or program
Leap Years is an American drama television series that aired on the Showtime cable network from July 29, 2001 until January 31, 2002. The show was created
Leap_Years
Calendar with lunar month, solar year
intercalary or leap month every 2 to 3 years. More precisely, 0.36826 is quite close to 7⁄19 (about 0.3684211): several lunisolar calendars have 7 leap months
Lunisolar_calendar
2008 Singaporean film
The Leap Years (also known as Leap of Love) is a Singaporean film produced by Mediacorp Raintree Pictures, based on the novella Leap of Love by the author
The_Leap_Years
Lunisolar calendar used for Jewish religious observances
whether to add the leap month was based on observation of natural agriculture-related events in ancient Israel. Between the years 70 and 1178, these empirical
Hebrew_calendar
for more. Any leap year that starts on Saturday has only one Friday the 13th: the only one in this leap year occurs in October. Common years starting on
Leap year starting on Saturday
Leap_year_starting_on_Saturday
Unit of time based on Earth's orbit
Gregorian calendar, approximates the tropical year by using a system of leap years. The term 'year' is also used to indicate other periods of roughly similar
Year
April, and July. Common years starting on Thursday share this characteristic, in the months of February, March, and November. Any leap year that starts on
Leap_year_starting_on_Sunday
Calendar year with 365 days
calendar, used by the majority of the world, employs both common years and leap years. This is to keep the calendar aligned with the tropical year, which
Common_year
Issue resulting in miscalculation of leap years
calculation of which years are leap years, or from manipulating dates without regard to the difference between leap years and common years. Leap year bugs typically
Leap_year_problem
more. Any leap year that starts on Wednesday has two Friday the 13ths: those two in this leap year occur in March and November. Common years starting on
Leap year starting on Wednesday
Leap_year_starting_on_Wednesday
characteristic. Leap years that begin on Friday, along with those starting on Sunday, occur most frequently: 15 of the 97 (≈ 15.46%) total leap years in a 400-year
Leap_year_starting_on_Friday
calendar. Any leap year that starts on Thursday has two Friday the 13ths: those two in this leap year occur in February and August. Leap years that begin
Leap year starting on Thursday
Leap_year_starting_on_Thursday
Official calendar of Iran
next five have 30 days, and the last month has 29 days in common years, 30 in leap years. The ancient Iranian New Year's Day, which is called Nowruz, always
Solar_Hijri_calendar
total leap years in a 400-year cycle of the Gregorian calendar. Their overall frequency is thus 3.25% (13 out of 400) of years. Like all leap year types
Leap_year_starting_on_Monday
2013 studio album by Tindersticks
Across Six Leap Years is the tenth studio album by English alternative band Tindersticks, released on 14 October 2013. The album consists of ten previously
Across_Six_Leap_Years
calendar. Any leap year that starts on Tuesday has only one Friday the 13th; the only one in this leap year occurs in June. Common years starting on Wednesday
Leap_year_starting_on_Tuesday
Solar calendar
calendar is a solar calendar of 365 days in every year with an additional leap day every fourth year (without exception). The Julian calendar is still used
Julian_calendar
12th month of the Hebrew calendar
Babylonian calendar the name was Araḫ Addaru or Adār ('Month of Adar'). In leap years, it is preceded by a 30-day intercalary month named Adar Aleph (Hebrew:
Adar
Topics referred to by the same term
leap year in Wiktionary, the free dictionary. A leap year is a year with an extra day (February 29). Leap year or leap years may also refer to: Leap Year
Leap_year_(disambiguation)
Internationally accepted civil calendar
revolution around the Sun. The rule for leap years is that every year divisible by four is a leap year, except for years that are divisible by 100 but not also
Gregorian_calendar
Calendar used in Revolutionary France from 1793 to 1805
every 30 years, leap years are 5 years apart instead of 4, as happened between the leap years 15 and 20. The lengths of the first 524 years were calculated
French_Republican_calendar
1958–1962 Chinese socioeconomic campaign
The Great Leap Forward was an industrialization campaign within China from 1958 to 1962, led by the Chinese Communist Party (CCP). CCP Chairman Mao Zedong
Great_Leap_Forward
American actress (born 1966)
Special Victims Unit (1999–2001). Afterwards, she led the drama series Leap Years (2001–2002) and held recurring roles in the drama series Skin (2003),
Michelle_Hurd
Year evenly divisible by 400
leap year is a leap year in the Gregorian calendar that is evenly divisible by 400. This means that the other three century years are not leap years,
Century_leap_year
Day of the year
the Julian and Gregorian calendars, as an intercalary date, to create leap years. Its main function is to keep the calendars aligned with the Earth's seasons
February_29
Calendar system with a whole number of weeks in a year
with 329 common years of 52 weeks plus 71 leap years of 53 weeks, a leap week calendar would synchronize with the Gregorian every 400 years since (329 ×
Leap_week_calendar
Way of calculating the day of the week of a given date
a doomsday during common years and January 4 a doomsday during leap years, which can be remembered as "the 3rd during 3 years in 4, and the 4th in the
Doomsday_rule
Topics referred to by the same term
Look up leap day in Wiktionary, the free dictionary. Leap day, February 29, is a date added to leap years. Leap Day may also refer to: Leap Day (Hong
Leap_Day
Leap week calendar system
Gregorian leap cycle, which has 97 leap days spread across 400 years, contains a whole number of weeks (20871). In every cycle there are 71 years with an
ISO_week_date
Television series (1989–1993)
Quantum Leap is an American science fiction television series, created by Donald P. Bellisario, that aired on NBC for five seasons, from March 26, 1989
Quantum_Leap_(1989_TV_series)
Second month in the Julian and Gregorian calendars
calendars. The month has 28 days in common years and 29 in leap years, with the 29th day being called the leap day. February is the third and last month
February
Method to find the day of the week of dates
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 with. The Dominical
Dominical_letter
Period of time
year with the astronomical cycle, it has 366 days in a leap year. With 97 leap years every 400 years, the Gregorian calendar year has an average length of
Calendar_year
Ninth month in the Gregorian and Julian calendars
Meskel (Ethiopian and Eritrean Orthodox Church, September 28 on leap years only, all other years is September 27) National Day of Awareness and Unity against
September
13-month calendar where every date is fixed to a day of the week
2000 was a leap year, the years 1700, 1800, and 1900 were common years. The International Fixed Calendar inserts the extra day in leap years as June 29
International_Fixed_Calendar
those three in this common year occur in February, March, and November. Leap years starting on Sunday share this characteristic, for the months January,
Common year starting on Thursday
Common_year_starting_on_Thursday
Esoteric calendar and game inspired, in part, by the Maya calendar
a 52-year cycle to account for leap years. The date called in the Gregorian calendar 29 February falls every four years between 22 Galactic and 23 Galactic
Dreamspell
one Friday the 13th: the only one in this common year occurs in August. Leap years starting on Thursday share this characteristic, but also have another
Common year starting on Friday
Common_year_starting_on_Friday
Type of calendar applicable to any year
different weekday each year. Leap week calendar plans often restrict common years to 364 days, or 52 weeks, and expand leap years to 371 days, or 53 weeks
Perennial_calendar
Calendar year
July August September October November December 2028 (MMXXVIII) will be a leap year starting on Saturday of the Gregorian calendar, the 2028th year of the
2028
Common year in the Gregorian Calendar
Calendar, all years that were divisible by 4 were leap years, meaning no century years could be common years. However, this rule adds too many leap days, resulting
Century_common_year
Computer bugs related to the year 2000
year 1900 as a leap year for compatibility with Lotus 1-2-3. In addition, the years 2100, 2200, and so on, were regarded as leap years. This bug was fixed
Year_2000_problem
Methods to calculate the day of the week
October in common years and April and July in leap years. February corresponds to March and November in common years and August in leap years. March always
Determination of the day of the week
Determination_of_the_day_of_the_week
Semi-annual astronomical event where the Sun is directly above the Earth's equator
the future, which he achieved by reducing the number of leap years from 100 to 97 every 400 years. However, there remained a small residual variation in
Equinox
Day of the year
August 5 is the 217th day of the year (218th in leap years) in the Gregorian calendar; 148 days remain until the end of the year. AD 25 – Guangwu claims
August_5
Day of the year
August 6 is the 218th day of the year (219th in leap years) in the Gregorian calendar; 147 days remain until the end of the year. 258 – Pope Sixtus II
August_6
Calendar day outside any regular month
and Ethiopian calendars are a period of five days in common years and six days in leap years in addition to those calendars' 12 standard months, sometimes
Intercalary_month_(Egypt)
Day of the year
August 7 is the 219th day of the year (220th in leap years) in the Gregorian calendar; 146 days remain until the end of the year. 461 – Roman Emperor Majorian
August_7
Brazilian actor and lawyer (born 1973)
Diego Vasquez on the sitcom Jesse (1998–2000), Joe Rivera on the drama Leap Years (2001–2002), Dr. Eddie Dorset on ER (2003), and Dr. Quentin Costa / The
Bruno_Campos
Religious date system
intercalation: a leap-day every 4 years; adding ten days every 40 years; a leap-month of 30 days once every 120 years; 5 months once every 600 years; 1,461 Zoroastrian
Zoroastrian_calendar
Day of the year
August 2 is the 214th day of the year (215th in leap years) in the Gregorian calendar; 151 days remain until the end of the year. 338 BC – A Macedonian
August_2
Day of the year
August 3 is the 215th day of the year (216th in leap years) in the Gregorian calendar; 150 days remain until the end of the year. 8 – Roman Empire general
August_3
Day of the year
August 1 is the 213th day of the year (214th in leap years) in the Gregorian calendar; 152 days remain until the end of the year. 30 BC – Octavian (later
August_1
Day of the year
August 8 is the 220th day of the year (221st in leap years) in the Gregorian calendar; 145 days remain until the end of the year. 685 BC – Spring and Autumn
August_8
Day of the year
August 4 is the 216th day of the year (217th in leap years) in the Gregorian calendar; 149 days remain until the end of the year. 70 BC – The trial against
August_4
World Programmer's Day
the 28th) day of each year. This is September 13 in common years and September 12 in leap years. The number 256 (28) was chosen because it is the number
Programmer's_Day
Extension of the Gregorian calendar before its introduction
8601. In these systems, the year 0 is a leap year. Although the nominal Julian calendar began in 45 BC, leap years between 45 BC and 1 BC were irregular
Proleptic_Gregorian_calendar
Egyptian liturgical calendar
the Coptic calendar has a leap year every four years invariably; it does not skip leap years three times every 400 years. This calendar is based on the
Coptic_calendar
defined as the appearance of three stars in the sky. On leap years (which occur every 2–3 years) an extra month, Adar II, is added and certain holidays
List of observances set by the Hebrew calendar
List_of_observances_set_by_the_Hebrew_calendar
Leap day (24 February used for two days)
Bissext, or bissextus (from Latin bis 'twice' and sextus 'sixth') is the leap day which is added to the Julian calendar every fourth year and to the Gregorian
Bissextus
African association football tournament for men's national teams
Nations from a biennial event held in odd-numbered years to a quadrennial event held in leap years. The African Nations League was announced by CAF president
African_Nations_League
Julian calendar extended backwards
calendar backwards to dates preceding AD 8 when the quadrennial leap year stabilized. The leap years that were actually observed between the implementation of
Proleptic_Julian_calendar
Day of the year
August 9 is the 221st day of the year (222nd in leap years) in the Gregorian calendar; 144 days remain until the end of the year. 48 BC – Caesar's Civil
August_9
Calendar year
June July August September October November December 2016 (MMXVI) was a leap year starting on Friday of the Gregorian calendar, the 2016th year of the
2016
Cheshvan and/or 29/30 Kislev. The period from 1 Adar (or Adar II, in leap years) to 29 Cheshvan contains all of the festivals specified in the Bible -
Days of week on Hebrew calendar
Days_of_week_on_Hebrew_calendar
Day of the year
September 11 is the 254th day of the year (255th in leap years) in the Gregorian calendar; 111 days remain until the end of the year. 9 – The Battle of
September_11
one Friday the 13th: the only one in this common year occurs in June. Leap years starting on Tuesday share this characteristic. Any common year that starts
Common year starting on Wednesday
Common_year_starting_on_Wednesday
Unit of time, usually 28 to 31 days
number of epagomenal days each year or to insert a thirteenth leap month every two or three years, if synchronicity with the solar year is desired. The former
Month
Length of time after which an eclipse repeats
= 15 common years + 3 leap years + 12.321 days = 14 common years + 4 leap years + 11.321 days = 13 common years + 5 leap years + 10.321 days
Saros_(astronomy)
Calendar year
December Wikimedia Commons has media related to 1984. 1984 (MCMLXXXIV) was a leap year starting on Sunday of the Gregorian calendar, the 1984th year of the
1984
When sun appears directly over equator
leap year about 18 hours 11 minutes earlier than the previous year. Balancing the increases of the common years against the losses of the leap years keeps
March_equinox
Calendar designed to look up the day of the week for a given date
A leap year has one more day, so the year following a leap year begins on the second day of the week after the leap year began. Every four years, the
Perpetual_calendar
Series of selections from the books of Nevi'im that is publicly read in synagogue
is only read in non-leap years when the preceding Rosh Hashanah was a Thursday and the following Passover is a Sunday, in leap years when the preceding
Haftara
System of measurement used in Ancient Rome
long, and a leap year is 366 days long. Between 45 BC and AD 1, leap years occurred at irregular intervals. Starting in AD 4, leap years occurred regularly
Ancient Roman units of measurement
Ancient_Roman_units_of_measurement
mismatch in some years. (Variants with an asterisk * are in leap years.) While the Gregorian computus yields a cycle of 5.7 million years, a complete Dionysian
List_of_dates_for_Easter
Calendar used by some Eastern Orthodox churches
when divided by 900, which would remain leap years. However, it was rejected because the proposal would omit a leap year in 2000, which would cause it to
Revised_Julian_calendar
Significant revision of a calendar system
outside those subdivisions, if any. Which years are leap years and common years and how they differ. Numbering of years, selection of the epoch, and the issue
Calendar_reform
Franco-American turbofan aircraft engine, successor to CFM56
The CFM International LEAP ("Leading Edge Aviation Propulsion") is a high-bypass turbofan engine produced by CFM International, a 50–50 joint venture between
CFM_International_LEAP
British statute adopting the Gregorian calendar
calendar days be skipped in September 1752 and that centennial years no longer be leap years unless divisible by 400. An annexe to the act gives a method
Calendar_(New_Style)_Act_1750
Calendar year
2012 (MMXII) was a leap year starting on Sunday of the Gregorian calendar, the 2012th year of the Common Era (CE) and Anno Domini (AD) designations, the
2012
Calculated calendar date when humanity's yearly consumption exceeds Earth's replenishment
Earth's natural resources for that year), and multiplying by 365 (366 in leap years), the number of days in a year: world biocapacity world ecological footprint
Earth_Overshoot_Day
Friday the 13ths: those two in this common year occur in April and July. Leap years starting on Sunday share this characteristic, but also have another in
Common year starting on Monday
Common_year_starting_on_Monday
1984 vigilante killing in Baton Rouge, Louisiana
June 4, 2022. Plauché, Jody [@jplauche] (February 29, 2024). "It was 10 Leap Years ago today that my karate teacher and kidnapper, Jeff Doucet, was arrested
Killing_of_Jeffrey_Doucet
Day of the year
December 31 is the 365th day of the year (366th in leap years) in the Gregorian calendar. It is known by a collection of names including: Saint Sylvester's
December_31
Day of the year
August 10 is the 222nd day of the year (223rd in leap years) in the Gregorian calendar; 143 days remain until the end of the year. 654 – Pope Eugene I
August_10
Calendar used in ancient Egypt before 22 BC
than the solar year and did not have any leap years, the Egyptian calendar lost about one day every four years relative to the Julian calendar. It is therefore
Egyptian_calendar
Canadian actor (1974–2024)
commercials and independent productions. His first major roles came in Leap Years and Odyssey 5. In 2004, Mitchell was cast in the film Miracle with Kurt
Kenneth_Mitchell_(actor)
Day of the year
August 12 is the 224th day of the year (225th in leap years) in the Gregorian calendar; 141 days remain until the end of the year. 1099 – First Crusade:
August_12
Day of the year
July 1 is the 182nd day of the year (183rd in leap years) in the Gregorian calendar; 183 days remain until the end of the year. 69 – Tiberius Julius Alexander
July_1
13ths: those two in this common year occur in September and December. Leap years starting on Monday share this characteristic. From July of the year preceding
Common year starting on Tuesday
Common_year_starting_on_Tuesday
Day of the year
August 11 is the 223rd day of the year (224th in leap years) in the Gregorian calendar; 142 days remain until the end of the year. 3114 BC – The Mesoamerican
August_11
occurs in leap years. This day is added to the calendar as a corrective measure because the Earth does not orbit the Sun in precisely 365 days. Leap year List
List_of_days_of_the_year
taking the number of leap years up until that century where k inhibits a leap day every 100 years and q reinstalls it every 400 years, yielding (k − q) as
Date_of_Easter
Calendar year
December Wikimedia Commons has media related to 2000. 2000 (MM) was a century leap year starting on Saturday of the Gregorian calendar, the 2000th year of the
2000
Fictional character on Law & Order: Special Victims Unit
Hurd eventually departed herself to join the drama television series Leap Years. The actress earned some critical praise for her performance as Jeffries
Monique_Jeffries
Day of the year
August 13 is the 225th day of the year (226th in leap years) in the Gregorian calendar; 140 days remain until the end of the year. 29 BC – Octavian holds
August_13
Football tournament
to even-numbered years and become a quadrennial event, taking place in leap years from 2028. In the first tournament in 1957, there were only three participating
Africa_Cup_of_Nations
Period for which accounts are prepared
year would move one day earlier on the calendar each year (two days in leap years) until it would otherwise reach the date seven days before the end of
Accounting_period
28-year cycle of the Julian calendar
Gregorian calendar with respect to the week. It occurs because leap years occur every 4 years, typically observed by adding a day to the month of February
Solar_cycle_(calendar)
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