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A system for naming days of the year, called calander dates.
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79 Calendar System topics matching:
Filter this Collection| x name | x image | x Days of year | x Days of week | x Months | x article |
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| x Gregorian calendar |
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May 1 | Sunday | April |
The Gregorian calendar, also called the Western calendar and the Christian calendar, is the internationally accepted civil calendar. It was introduced by Pope Gregory XIII, after whom the calendar was named, by a decree signed on 24 February 1582;...
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| January 15 | Tuesday | August | |||
| December 25 | Wednesday | December | |||
| First Tuesday following the first Monday in November | Thursday | February | |||
| January 1 | Friday | January | |||
| more ▼ | more ▼ | more ▼ | |||
| x Islamic calendar |
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Islamic New Year | Muharram |
The Islamic calendar also known as Hijri calendar is a lunar calendar consisting of 12 lunar months in a year of 354 or 355 days.
Being a purely lunar calendar, it is not synchronized with the seasons. With an annual drift of 10 or 11 days, the...
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| Day of Ashura | Sha'aban | ||||
| 10th day of Dhul Hijja | Rajab | ||||
| Mawlid | Safar | ||||
| Mid-Sha'ban | Rabi' al-awwal | ||||
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| x Mayan calendar |
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The Maya calendar is a system of calendars used in pre-Columbian Mesoamerica, and in many modern communities in highland Guatemala and in Veracruz, Oaxaca and Chiapas, Mexico.
The essentials of the Maya calendar are based upon a system which had...
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| x Iranian calendar |
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The Iranian calendars or sometimes called Persian calendars (Persian: گاهشماری ایرانی Gâhšomâri-ye Irâni) are a succession of calendars invented or used for over two millennia in Greater Iran. One of the longest chronological records in human...
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| x Julian calendar |
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The Julian calendar is a reform of the Roman calendar introduced by Julius Caesar in 46 BC (708 AUC). It took effect the following year, 45 BC (709 AUC), and continued to be used as the civil calendar in some countries into the 20th century. The...
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| x Hebrew calendar |
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Nisan 14 | Shabbat | Kislev |
The Hebrew calendar (הלוח העברי ha'luach ha'ivri), or Jewish calendar, is a lunisolar calendar used today predominantly for Jewish religious observances. It determines the dates for Jewish holidays and the appropriate public reading of Torah...
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| Tenth of Tevet | Nisan | ||||
| Tisha B'Av | Adar | ||||
| 29th day of Elul | Shevat | ||||
| Iyar 28 | Iyar | ||||
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| x Chinese calendar |
The Chinese calendar is a lunisolar calendar, incorporating elements of a lunar calendar with those of a solar calendar. It is not exclusive to China, but followed by many other Asian cultures as well. In most of East Asia today, the Gregorian...
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| x Babylonian calendar |
The Babylonian calendar was a lunisolar calendar with years consisting of 12 lunar months, each beginning when a new crescent moon was first sighted low on the western horizon at sunset, plus an intercalary month inserted as needed by decree. The...
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| x French Republican Calendar |
The French Republican Calendar or French Revolutionary Calendar was a calendar created and implemented during the French Revolution, and used by the French government for about 12 years from late 1793 to 1805, and for 18 days by the Paris Commune in...
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| x Soviet revolutionary calendar |
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The Soviet calendar added five- and six-day work weeks between 1929 and 1940 to the Gregorian calendar adopted by Russia in 1918. Although the traditional seven-day week was still recognized, a day of rest on Sunday was replaced by one day of rest...
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| x Golden numbers |
A golden number (sometimes capitalized) is a number assigned to each year in sequence to indicate the year's position in a 19-year Metonic cycle. They are used in the computus (the calculation of the date of Easter) and also in the Runic calendar....
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| x Runic calendar |
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A Runic calendar (also Rune staff or Runic Almanac) is a perpetual calendar based on the 19 year long Metonic cycle of the Moon. Runic calendars were written on parchment or carved onto staves of wood, bone, or horn. The oldest one known, and the...
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| x Discordian calendar |
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The Discordian or Erisian calendar is an alternative calendar used by some adherents of Discordianism. It is specified on page 00034 of the Principia Discordia.
The Discordian year 1 YOLD is 1166 BC. (Elsewhere in the Principia Discordia, it is...
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| x Tonalpohualli |
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The tonalpohualli, a Nahuatl word meaning "count of days", is a 260-day sacred period (often termed a "year") in use in pre-Columbian Mesoamerica, especially among the Aztecs. This calendrical period is neither solar nor lunar, but rather consists...
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| x Assyrian calendar |
The Assyrian calendar is a lunar-based calendar that begins in the year 4750 BC, inspired by an estimate of the date of the first temple at Assur, notably based on a series of articles published in the Assyrian magazine Gilgamesh, edited by the...
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| x Tamil |
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The Tamil calendar is a solar and sidereal Hindu calendar used in Tamil Nadu. It is also used in Pondicherry (India), and by the Tamil population in Malaysia, Singapore, Mauritius and Sri Lanka. It is also used by Telugu speaking people in Tamil...
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| x Thai lunar calendar |
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The Thai lunar calendar (Thai: ปฏิทินจันทรคติ Patithin Chantharakhati) (literally, Against-the-Sun Moon-Ways), Dai calendar (傣历), or Tai calendar, is Thailand's version of the lunisolar Buddhist calendar. It is used in the southeast Asian countries...
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| x Korean calendar |
The traditional Korean calendar is a lunisolar calendar, like the traditional calendars of other East Asian countries. Dates are calculated from Korea's meridian, and observances and festivals are based in Korean culture.
The Gregorian calendar was...
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| x Buddhist calendar |
The Buddhist calendar is used on mainland Southeast Asia in the countries of Thailand, Cambodia, Laos, Burma (officially known as Myanmar) and Sri Lanka in several related forms. It is a lunisolar calendar having months that are alternately 29 and...
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| x Hindu calendar |
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29 Ashwin |
The Hindu calendar used in ancient times has undergone many changes in the process of regionalization, and today there are several regional Indian calendars, as well as an Indian national calendar. Nepali calendar, Bengali calendar, Malayalam...
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| x Tibetan calendar |
The Tibetan calendar (Tibetan: ལོ་ཐོ, Wylie: lo-tho)is a lunisolar calendar, that is, the Tibetan year is composed of either 12 or 13 lunar months, each beginning and ending with a new moon. A thirteenth month is added every two or three years, so...
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| x Japanese calendar |
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On January 1, 1873, Japan adopted the Gregorian calendar. Before 1873, the Chinese style lunisolar calendar had been in use since 7th century. Japanese eras are still in use.
Japan has refused to accept some elements of the Gregorian calendar itself...
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| x Bengali calendar |
The Bengali calendar (Bengali: বঙ্গাব্দ Bônggabdo or বাংলা সন Bangla Shôn) or Bangla calendar may refer to the sidereal solar Hindu calendar used by the Bengali people in India or the tropical solar calendar officially used in Bangladesh. The...
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| x Roman calendar |
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The Roman calendar changed its form several times between the founding of Rome and the fall of the Roman Empire. This article generally discusses the early Roman or 'pre-Julian' calendars. The calendar used after 46 BC is discussed under Julian...
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| x Javanese calendar |
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The Javanese calendar is the calendar of the Javanese people. It is used concurrently with two other calendars, the Gregorian calendar and the Islamic calendar. The Gregorian calendar is the official calendar of the Republic of Indonesia and civil...
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| x Attic calendar |
The Attic calendar is a hellenic calendar that was in use in ancient Attica, the ancestral territory of the Athenian polis. This article focuses on the 5th and 4th centuries BC, the classical period that produced some of the most significant works...
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| x Eastern Orthodox liturgical calendar |
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September 19 |
The Eastern Orthodox Liturgical Calendar describes and dictates the rhythm of the life of the Eastern Orthodox Church. Associated with each date are passages of Holy Scripture, Saints and events for commemoration, and many times special rules for...
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| x 365-day calendar |
A 365-day calendar consists of exactly 365 days per year (no leap days), and is primarily used in computer models and as an assumption in every-day calculations. For example, a calculation of a daily rate may use an annual total divided by exactly...
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| x Berber calendar |
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The Berber calendar is the agricultural calendar that is traditionally used in North Africa regions. It is also known in Arabic as the ﻓﻼﺣﻲ fellāḥī "rustic" or ﻋﺠﻤﻲ ʿajamī "foreign" calendar. It is employed to regulate the seasonal agricultural...
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| x Caspian calendar |
The Tabarian calendar is the indigenous solar calendar of the Mazandaranis.
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| x Bulgar calendar |
The Bulgar calendar was a calendar system used by the Bulgars, a seminomadic people, originally from Central Asia, who from the 2nd century onwards dwelled in the Eurasian steppes north of the Caucasus and around the banks of river Volga. The main...
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| x Ancient Bulgarian calendar |
The ancient Bulgarian calendar is based on observations of Jupiter (Yankul) and the Sun. Under the ancient Bulgarian calendar system, the year had 364 counted days and one uncounted day, totaling 365 days. Every four years, an extra day was inserted...
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| x Yoruba calendar |
The Yoruba calendar (Kojoda) year starts from 3 June to 2 June of the following year. According to this calendar, the Gregorian year 2008 A. D. is the 10050th year of Yoruba culture. The traditional Yoruba week has four days. The 4 days that are...
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| x Cham calendar |
The Cham calendar (Cham language: sakawi) is a lunar calendar used by the Cham people of Vietnam since ancient times.
The length of the month: the full month has 30 days (Cham language: balan tapăk) and the hollow month has 29 days (Cham language:...
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| x Lunar calendar | Undecimber |
A lunar calendar is a calendar that is based on cycles of the lunar phase. A common purely lunar calendar is the Islamic calendar or Hijri Qamari calendar. A feature of the Islamic calendar is that a year is always 12 months, so the months are not...
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| x Revised Julian calendar |
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The Revised Julian calendar, also known as the Rectified Julian calendar, or, less formally, New calendar, is a calendar, originated in 1923, which effectively discontinued the 340 years of divergence between the naming of dates sanctioned by those...
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| x Proleptic Gregorian calendar |
The proleptic Gregorian calendar is produced by extending the Gregorian calendar backward to dates preceding its official introduction in 1582.
The proleptic Gregorian calendar is explicitly required for all dates before 1582 by ISO 8601:2004 ...
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| x Aztec calendar |
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The Aztec calendar is the calendar system that was used by the Aztecs as well as other Pre-Columbian peoples of central Mexico. It is one of the Mesoamerican calendars, sharing the basic structure of calendars from throughout ancient Mesoamerica....
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| x Decimal calendar |
A decimal calendar contains either ten days per week, a multiple of ten days in a month, or ten months per year. Examples that have been adopted are the calendar of Romulus, the Egyptian calendar, the Alexandrian calendar, the Coptic calendar, the...
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| x Malayalam calendar |
Malayalam Calendar (also known as Malayalam Era or Kollavarsham or Kollam Era) is a solar and sidereal Hindu calendar used in Kerala, India. The origin of the calendar has been dated as 825 CE.
There are many theories about the origin of the...
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| x Calendar of saints |
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The calendar of saints is a traditional Christian method of organizing a liturgical year by associating each day with one or more saints and referring to the feast day of said saint. The system arose from the early Christian custom of annual...
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| x Thai solar calendar |
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The Thai solar calendar, Suriyakhati (Thai: สุริยคติ) was adopted by King Chulalongkorn (Rama V) in AD 1888 as the Siamese version of the Gregorian calendar. It is the legal calendar in Thailand, though Thai lunar calendar dates continue in use....
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| x Zoroastrian calendar |
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This article treats of the reckoning of days, months and years in the calendar used by adherents of the Zoroastrian faith. Zoroastrian religious festivals are discussed elsewhere, but have a fixed relationship to Nawruz, the New Year festival, whose...
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| x Bahá'í calendar |
The Bahá'í calendar, also called the Badí‘ calendar (badí‘ means wondrous or unique ), used by Bábism and the Bahá'í Faith, is a solar calendar with regular years of 365 days, and leap years of 366 days. Years are composed of 19 months of 19 days...
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| x Swedish calendar |
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The Swedish calendar was a calendar in use in Sweden and its possessions from 1 March 1700 until 30 February 1712; it was one day ahead of the Julian calendar and ten days behind the Gregorian calendar. Easter was nominally calculated astronomically...
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| x Haab' |
The Haab' is part of the Maya calendric system. It was the Maya version of the 365-day calendar known to many of the pre-Columbian cultures of Mesoamerica. Unlike the Tzolk'in, another Mayan Calendar system with no obvious relation to an...
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| x Pentecontad calendar |
The Pentecontad Calendar is a unique agricultural calendar system thought to be of Amorite origin in which the year is broken down into seven periods of fifty days ( total of 350 days ), with an annual supplement of fifteen or sixteen days....
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| x Rapa Nui calendar |
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The Rapa Nui calendar was the indigenous lunisolar calendar of Easter Island. It is now obsolete.
William J. Thomson, paymaster on the USS Mohican, spent twelve days on Easter Island from December 19 to 30, 1886. Among the data Thomson collected...
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| x Tabular Islamic calendar |
The Tabular Islamic calendar (an example is the Fatimid or Misri calendar) is a rule-based variation of the Islamic calendar. It has the same numbering of years and months, but the months are determined by arithmetic rules rather than by observation...
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| x Hellenic calendar |
The Hellenic calendar—or more properly, the Hellenic calendars, for there was no uniform calendar imposed upon all of Classical Greece—began in most Greek states between Autumn and Winter except the Attic calendar, which began in June. The Greeks,...
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| x Celtic calendar |
The Celtic calendar is a compilation of pre-Christian Celtic systems of timekeeping, including the Gaulish Coligny calendar, used by Celtic countries to define the beginning and length of the day, the week, the month, the seasons, quarter days, and...
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| x Taichuli calendar |
The Taichuli calendar was one of the most advanced calendars of Ancient China. It is based on the Qin calendar, stating that there were 365.25 days in a year and 29.53 days in a month. The creation of Taichuli was regarded as a revolution in the...
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| x Ethiopian calendar |
The Ethiopian calendar (Amharic: የኢትዮጵያ ዘመን አቆጣጠር yä'Ityoṗṗya zämän aḳoṭaṭär), also called the Ge'ez calendar, is the principal calendar used in Ethiopia and also serves as the liturgical calendar for Christians in Eritrea belonging to the Eritrean...
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| x Irish calendar |
The Gaelic calendar (also known as the Irish calendar) is a pre-Christian Celtic system of timekeeping used during Ireland's Gaelic era and still in popular use today to define the beginning and length of the day, the week, the month, the seasons,...
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| x Tzolk'in |
Tzolk'in (from the revised Guatemala Mayan languages Academy orthography, which is preferred by the linguists of the Summer Institute of Linguistics, formerly and commonly tzolkin) is the name bestowed by Mayanists on the 260-day Mesoamerican...
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| x Bikram Samwat |
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Vikram Samvat (Bikram Sambat, Vikram Samvat Vikram Samwat or Vikram's Era, Devanagari:विक्रम संवत्, abbreviated "V.S." or "B.S") is the calendar established by Indian emperor Vikramaditya. It is a popularly used calendar in India and the official...
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| x Germanic calendar |
The Germanic calendars were the regional calendars used amongst the early Germanic peoples, prior to the adoption of the Julian calendar in the Early Middle Ages.
The Germanic peoples had their own names for the months which varied by region and...
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| x 360 day calendar |
The 360-day calendar is a method of measuring durations used in financial markets, in computer models, in ancient literature, and in prophetic literary genres. It is based on merging the three major calendar systems into one complex clock, with the...
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| x Aetos Kosmou |
Etos Kosmou (Greek: Έτος Κόσμου) was an early Byzantine and Roman Christian chronology system of measuring time introduced by Panodorus of Alexandria, Hippolytus of Rome, Sulpicius Severus, Annianus of Alexandria, George Syncellus, and others. It...
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| x Traditional Burmese calendar |
The traditional Burmese calendar is a lunisolar calendar based on both the phases of the moon and the motion of the sun. Within each month of the Burmese calendar, a major festival, often Burmese Buddhist in nature, is held. Despite its religious...
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