A calendar is a system for naming periods of time, typically days. These names are known as calendar dates. The dates may be based on the perceived motion of astronomical objects. A calendar is also a physical device (often paper) that illustrates the system (for example, a desktop calendar) — this is the most common usage of the word. As a subset, 'calendar' is also used to denote a list of particular set of planned events (for example, court calendar). Calendar - Calendar systems. Including:

• Calendar - Calendar systems
• Calendar - Solar calendars
• Calendar - Lunar calendars
• Calendar - Fiscal calendars
• Calendar - Calendar subdivisions
• Calendar - Other calendar types
• Calendar - Complete and incomplete calendars
• Calendar - Pragmatic theoretical and mixed calendars
• Calendar - Uses
• Calendar - Currently used calendars
• Calendar - Sources

Read more here: » Calendar: Encyclopedia - Calendar

See also:

Calendar, Calendar - Calendar systems, Calendar - Solar calendars, Calendar - Lunar calendars, Calendar - Fiscal calendars, Calendar - Calendar subdivisions, Calendar - Other calendar types, Calendar - Complete and incomplete calendars, Calendar - Pragmatic theoretical and mixed calendars, Calendar - Uses, Calendar - Currently used calendars, Calendar - Sources

Read more here: » Calendar: Encyclopedia II - Calendar - Other calendar types

Calendars in use on Earth are lunar, solar, lunisolar or arbitrary. A lunar calendar is synchronized to the motion of the Moon (moon phases); an example is the Islamic calendar. A solar calendar is based on perceived seasonal changes synchronized to the apparent motion of the Sun; an example is the Persian calendar. A lunisolar calendar is synchronized both to the motion of the Moon and to the apparent motion of the Sun; an example is the Jewish calendar. An arbitrary calendar is not synchronized to either the Moon or the Sun; examples are the ...

See also:

Calendar, Calendar - Calendar systems, Calendar - Solar calendars, Calendar - Lunar calendars, Calendar - Fiscal calendars, Calendar - Calendar subdivisions, Calendar - Other calendar types, Calendar - Complete and incomplete calendars, Calendar - Pragmatic theoretical and mixed calendars, Calendar - Uses, Calendar - Currently used calendars, Calendar - Sources

Read more here: » Calendar: Encyclopedia II - Calendar - Calendar systems

A wall calendar is a calendar intended for placement on a wall. Wall calendars can be visually interesting, feature pin-up girls, companies and products. Years ago, filling stations often gave wall calendars away for free to customers. Wall calendars can be an advertisement in the home or a reminder of holidays, important events, and company events. Today, wall calendars today are often sol ...

Read more here: » Wall calendar: Encyclopedia - Wall calendar

The Buddhist calendar is used on mainland southeast Asia in the countries of Cambodia, Laos, Thailand, and Myanmar (formerly Burma) in several related forms. It is a lunisolar calendar having months that are alternately 29 and 30 days, with an intercalated day and a 30-day month added at regular intervals. All of its forms are based on the original third century Surya Siddhanta, not its modern fo ...

Including:

• Buddhist calendar - External link

Read more here: » Buddhist calendar

The term Celtic calendar is used to refer to a variety of calendars used by Celtic-speaking peoples at different times in history. Celtic calendar - Neolithic Calendar?. A neolithic engraved stone found at Knowth, Ireland, may be a graphical representation of a lunar calendar. While pre-dating the Celts, Brennan (1994) speculates that it operates on the same principle as the Coligny calendar. Irish calendar, Celtic art Celtic calendar - Continental Celt ...

Including:

• Celtic calendar - Neolithic Calendar?
• Celtic calendar - Continental Celtic Calendar
• Celtic calendar - Mediaeval Irish and Welsh Calendars
• Celtic calendar - Neo-Pagan calendars

Read more here: » Celtic calendar: Encyclopedia - Celtic calendar

The World calendar often called the Worldsday Calendar is a proposed calendar as follows: There is no change in which years are leap years. Worldsday occurs after December every year and in leap years also after June. Worldsday is not a normal day of the week, consequently the world calendar week is delayed one day after each worldsday, so enabling it to fit in with the calendar year. Many governments have expressed interest in this calendar. It was strongly supported for many years by Elisabet ...

Read more here: » World calendar: Encyclopedia - World calendar

The Hindu calendar is of two types: the solar calendar or the saura māna the lunisolar calendar or the chāndra māna Both are described in this article. Hindu calendar - Basic structure. The structure of the Hindu calendar is of course composed of days making months making years. The system of describing days is the same in both the solar and lunisolar calendars. The system of describing months and hence years is what distinguishes the solar and lunisolar ...

Including:

• Hindu calendar - Basic structure
• Hindu calendar - Day
• Hindu calendar - Tithi
• Hindu calendar - Vaasara
• Hindu calendar - Nakshatra
• Hindu calendar - Yoga
• Hindu calendar - Karana
• Hindu calendar - Month and year of the solar calendar
• Hindu calendar - Months of the lunisolar calendar
• Hindu calendar - Naming lunar months
• Hindu calendar - Religious observances in case of extra and lost months
• Hindu calendar - Year of the lunisolar calendar
• Hindu calendar - Another kind of lunisolar calendar
• Hindu calendar - Correspondence of the lunisolar calendar to the solar calendar
• Hindu calendar - Year numbering
• Hindu calendar - Year names
• Hindu calendar - Eras
• Hindu calendar - History

Read more here: » Hindu calendar: Encyclopedia - Hindu calendar

The Darian Calendar is a system of time-keeping designed to serve the needs of any possible future human settlers on the planet Mars. It was created by aerospace engineer and political scientist Thomas Gangale in 1985 and named by him after his son Darius. Darian calendar - Year Length and Intercalation. The basic time periods from which the calendar is constructed are the Martian solar day (sometimes called a sol) and the Martian vernal equinox year, which is slightly different from the tropical year. The ...

Including:

• Darian calendar - Year Length and Intercalation
• Darian calendar - Calendar layout
• Darian calendar - Start of Year
• Darian calendar - Disputed points
• Darian calendar - Martiana Calendar
• Darian calendar - Other Darian Calendars

Read more here: » Darian calendar: Encyclopedia - Darian calendar

The Hebrew calendar (Hebrew: הלוח העברי) or Jewish calendar is the annual calendar used in Judaism. It determines the dates of the Jewish holidays, the appropriate Torah portions for public reading, Yahrzeits (the date to commemorate the death of a relative), and the specific daily Psalms which some customarily read. Two major forms of the calendar have been used: an observational form used prior to the destruction of the Second Temple in 70, and based on witnesses observing ...

Including:

• Hebrew calendar - History
• Hebrew calendar - Biblical period
• Hebrew calendar - Babylonian exile
• Hebrew calendar - Second Temple era
• Hebrew calendar - Roman Era
• Hebrew calendar - Alexandrian Jewish calendar
• Hebrew calendar - Transition period
• Hebrew calendar - When does the year begin?
• Hebrew calendar - Modern calendar
• Hebrew calendar - Epoch
• Hebrew calendar - Measurement of the month
• Hebrew calendar - Pattern of calendar years
• Hebrew calendar - Measurement of hours
• Hebrew calendar - Measurement of lunar conjunctions/molads
• Hebrew calendar - Metonic cycle
• Hebrew calendar - Special holiday rules
• Hebrew calendar - Karaite interpretation
• Hebrew calendar - Accuracy

Read more here: » Hebrew calendar: Encyclopedia - Hebrew calendar

An Advent calendar is a symbol of the holy season of Advent, celebrated in December near Christmas, another holiday season. The traditional calendar consists of two pieces of cardboard on top of each other. Twenty four doors are cut out in the top layer, with one door being opened every day, from December 1 to December 24 (Christmas Eve). Each compartment can either show a part of the Nativity story and the birth of Jesus, or can simply display a piece of paraphernalia to do with Christmas (e.g. Bells, holly). Advent Calendars ...

Read more here: » Advent calendar: Encyclopedia - Advent calendar

The Attic calendar is the 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 of ancient Greek literature. Because of the relative wealth of evidence from Athens, of all the Hellenic calendars it is the best understood. Viewed from the standpoint of the modern Gregorian calendar, this ancient system has many peculiar features. This is a part of its appeal: as a cultural artif ...

Including:

• Attic calendar - Local focus of the system
• Attic calendar - More than one calendar
• Attic calendar - Festival calendar
• Attic calendar - List of months
• Attic calendar - Lunisolar calendar
• Attic calendar - Names of the months
• Attic calendar - Days of the month
• Attic calendar - State calendar
• Attic calendar - Manipulation of the calendar
• Attic calendar - Dating long range events
• Attic calendar - Sidereal calendar

Read more here: » Attic calendar: Encyclopedia - Attic calendar

A lunar calendar is a calendar whose date indicates the moon phase. This is normally done by having a month which corresponds to a lunation so that the day of month indicates the moon phase. If a calendar tracks the seasons, it is also a lunisolar calendar. Lunar calendar - Examples. Most lunar calendars are also lunisolar, such as the Hebrew, Chinese and Hindu calendar, and most calendar systems used in antiquity. The reason for this is that a year is not evenly divisible by an exact number of lunat ...

Including:

• Lunar calendar - Examples
• Lunar calendar - Determining the start of the month

Read more here: » Lunar calendar: Encyclopedia - Lunar calendar

In the Mesoamerican calendars, Calendar Round dates are composed by interlacing the dates of a 260-day period (Tzolkin in the Maya Calendar) with dates from a 365-day period (known in the Maya language as the Haab). One Calendar Round cycle thus includes 18980 distinct dates and lasts approximately 52 years (the least common multiple of 260 and 365 is 18980). A typical Calendar Round date such as 8 Cauac 13 Zip shows the day 8 Cauac of ...

Including:

• Calendar round - External link

Read more here: » Calendar round: Encyclopedia - Calendar round

The Coptic calendar, also called the Alexandrian Calendar, is used by the Coptic Orthodox Church. It is based on the Ancient Egyptian calendar. To avoid the calendar creep of the latter, a reform of the Ancient Egyptian calendar was introduced at the time of Ptolemy III (Decree of Canopus, in 238 BC) which consisted in the intercalation of a 6th epagomenal day every fourth year. However, this reform was opposed by the Egyptian priests, and the idea was not adopted until 25 BC, when the Roman Emperor Augustus formally reformed t ...

Including:

• Coptic calendar - The Coptic year
• Coptic calendar - The date of Christmas
• Coptic calendar - The date of Easter
• Coptic calendar - Coptic months

Read more here: » Coptic calendar: Encyclopedia - Coptic calendar

According to the Gregorian calendar, the calendar year begins on January 1 and ends on December 31. Other alignments of the 12-month period can be used for purposes of accounting (see fiscal year). Generally speaking, a calendar year begins on the New Year's day of the given calendar system and ends on the day before the following New Year's day. See also. Calendar Year Seasonal year Fiscal year Category: Units of ...

Read more here: » Calendar year: Encyclopedia - Calendar year

The Maya calendar is actually a system of distinct calendars and almanacs used by the Maya civilization of pre-Columbian Mesoamerica. These different calendars tracked observable phenomena such as the solar year, the lunar year, and the synodic period of the planet Venus; others had a divinatory or ritualistic purpose without any known association to natural cycles. These calendars could be synchronised and interlocked in complex ways, their combina ...

Including:

• Maya calendar - General overview
• Maya calendar - Maya concepts of time
• Maya calendar - Tzolk'in
• Maya calendar - Divination
• Maya calendar - Origin of the Tzolkin
• Maya calendar - Haab
• Maya calendar - Wayeb
• Maya calendar - Calendar Round
• Maya calendar - Long Count
• Maya calendar - Calculating Long Count dates
• Maya calendar - Calculating the Tzolkin date portion
• Maya calendar - Calculating the Haab date portion
• Maya calendar - End of the world?
• Maya calendar - Venus cycle

Read more here: » Maya calendar: Encyclopedia - Maya calendar

The Chinese calendar is a lunisolar calendar incorporating elements of a lunar calendar with those of a solar calendar. In China today, the Gregorian Calendar is used for most day to day activities, but the Chinese calendar is still used for marking traditional holidays such as Chinese New Year (Spring Festival), Duan Wu festival and the Mid-Autumn Festival, and in astrology, such as choosing the most auspicious date for a wedding or the opening of a building. Because each month follows one cycle of the moon, it is also used to determ ...

Including:

• Chinese calendar - History
• Chinese calendar - Legendary beginnings
• Chinese calendar - Early History
• Chinese calendar - The Taichuli calendar
• Chinese calendar - The True Sun and Moon
• Chinese calendar - The Gregorian Reform and the 1929 time change
• Chinese calendar - Calendar Rules
• Chinese calendar - Year Markings
• Chinese calendar - Regnal Years
• Chinese calendar - The Stem-Branch Cycle
• Chinese calendar - Solar Year versus Lunar Year
• Chinese calendar - Hours of the Day
• Chinese calendar - The Chinese Zodiac
• Chinese calendar - Solar term
• Chinese calendar - Holidays
• Chinese calendar - Purpose of the Intercalary Months
• Chinese calendar - The relevance of the calendar today
• Chinese calendar - Practical uses
• Chinese calendar - Cultural issues

Read more here: » Chinese calendar: Encyclopedia - Chinese calendar

The Bangla calendar also known as Bangabda in the Bengali language, is the traditional calendar used in Bangladesh and Bangla (Bengali)-speaking regions of India. The calendar is based on the solar year. New Year's Day falls between 13 April and 15 April. Bangla calendar - History. Under the Mughals, agricultural taxes were collected according to the Hijri calendar. However, as the Hijri calendar is a lunar calendar, the agricultural year did not coincide with the fiscal year. Therefore, farmers were ...

Including:

• Bangla calendar - History
• Bangla calendar - Months
• Bangla calendar - Organization
• Bangla calendar - Beginning of day
• Bangla calendar - Rule of leap year

Read more here: » Bangla calendar: Encyclopedia - Bangla calendar

The Malayalam calendar is a sidereal solar calendar used in the South Indian state of Kerala. It has twelve months: Chingam. "Onam", the most important festival of Kerala, is celebrated during this month. This comes during August or September of Gregorian Calendar. Kanni Thulam Vrischikam. The famous "Sabarimala" temple in Kerala is opened for devotees on the first day of this month for a period of two months. This period is called "Mandalakkaalam" DhanuIncluding:

• Malayalam calendar - External link

Read more here: » Malayalam calendar: Encyclopedia - Malayalam calendar