This article is about the dating system. For the physical object, see Calendar (stationery). For other uses, see Calendar (disambiguation).
"📅" redirects here. For the unofficial holiday commonly represented by this emoji, see World Emoji Day.
Not to be confused with Calender.
The examples and perspective in this article deal primarily with Eurasia and the Near East and do not represent a worldwide view of the subject. You may improve this article, discuss the issue on the talk page, or create a new article, as appropriate.(September 2022) (Learn how and when to remove this message)
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Modern day Indonesian Gregorian calendar for a Catholic churchBritish calendar, 1851, gilt bronze and malachite, height: 20.3 cm, Metropolitan Museum of Art (New York City)
A calendar is a system of organizing days. This is done by giving names to periods of time, typically days, weeks, months and years.[1][2][3] A date is the designation of a single and specific day within such a system. A calendar is also a physical record (often paper) of such a system. A calendar can also mean a list of planned events, such as a court calendar, or a partly or fully chronological list of documents, such as a calendar of wills.
Periods in a calendar (such as years and months) are usually, though not necessarily, synchronized with the cycle of the sun or the moon.[4][5][6] The most common type of pre-modern calendar was the lunisolar calendar, a lunar calendar that occasionally adds one intercalary month to remain synchronized with the solar year over the long term.
^"Calendars and their History". eclipse.gsfc.nasa.gov. Retrieved 12 March 2024.
^Guo, Rongxing (16 May 2018). Human-Earth System Dynamics: Implications to Civilizations. Springer. p. 159. ISBN 978-981-13-0547-4.
^Bond, Thomas; Hughes, Chris (3 December 2013). Singapore PSLE Mathematics Challenging Practice Solutions (Yellowreef). Yellowreef Limited. ISBN 978-0-7978-0222-3.
^"Do menstrual and lunar cycles synchronize? What scientists say". www.medicalnewstoday.com. 12 February 2021. Retrieved 12 March 2024.
^"Introduction to Calendars". aa.usno.navy.mil. Retrieved 12 March 2024.
^"History – Ancient Egyptian Calendar" (PDF). Retrieved 12 March 2024.
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 date is the designation...
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Roman calendar was the calendar used by the Roman Kingdom and Roman Republic. Although the term is primarily used for Rome's pre-Julian calendars, it is...
The Buddhist calendar is a set of lunisolar calendars primarily used in Tibet, Cambodia, Laos, Myanmar, Bangladesh, India, Sri Lanka, Thailand and Vietnam...
Gregorian calendar, is "Juche 1" in the Juche calendar. The calendar was adopted in 1997, three years after the death of Kim Il Sung. The calendar borrows...
The Iranian calendars or Iranian chronology (Persian: گاهشماری ایرانی, Gâh-Şomâriye Irâni) are a succession of calendars created and used for over two...
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