Specific calendars

lunisolar calendar

historical calendar of hindus

principal calendar system, mainly used in Ethiopia and Eritrea

calendar of 365 days without leap years, with an era beginning in the 6th century

set of lunisolar calendars with Buddhist tradition used in Southeastern Asia

International standards for dates and times

calendars used in Iran

official calendar of Iran

calendar era that uses 10,000 BC as 1 HE

calendar used by the Eastern Orthodox Church from c. 691 to 1728

solar calendar used in the Baháʼí Faith

calendar

legal calendar in Thailand

traditional Christian method of organizing a liturgical year by associating each day with one or more saints

agricultural calendar traditionally used by Amazig culture

Traditional lunisolar calendar in Korea

calendar

perpetual calendar based on the 19 year long Metonic cycle of the Moon

calendar proposed by M. Milanković in 1923 and adopted by some Eastern Orthodox churches

proposed reform of the Gregorian calendar, consisting of 4 quarters, each consisting of 3 months of length 31, 30 and 30, with an extra day after December and (on leap years) after June

lunisolar calendar used in various Burmese states

small limestone tablet with an early Canaanite inscription

calendar found in Coligny, Ain, France in 1897

calendar

Wikimedia list article

lunisolar calendar, also influenced by Han and Indian calendar

method of year numbering

system of time-keeping for future human settlers on Mars

perennial calendar proposal with fixed weekdays

papal bull

right|280px|thumb|Page 11 reverse from , showing four day-symbols of the : ( = one) Flint/Knife , ( = two) Rain , ( = three) Flower , and ( = four) Caiman/Crocodile (), with Spanish descriptions. thumb|Above is the Codex Telleriano-Remensis: Folio 10r annotated to identify the day signs (Tonalpohualli) and counts on the page. This page includes the later half of a Trecena, starting with 6 grass (6 Malinalli) and ending with 13 rain (13 Quiyahuitl). The Trecena progresses from the second row and the first column and continues to the right. Once it is five columns in the order it progresses down

non-repeating base-20 and base-18 calendar used by several pre-Columbian Mesoamerican cultures, including the Maya

The tzolkʼin (, formerly and commonly tzolkin) is the 260-day Mesoamerican calendar used by the Maya civilization of pre-Columbian Mesoamerica.

religious calendars

accounting method

A stardate is a fictional system of time measurement developed for the television and film series Star Trek. In the series, use of this date system is commonly heard at the beginning of a voice-over log entry, such as "Captain's log, stardate 41153.7. Our destination is planet Deneb IV …" (Encounter at Farpoint). While the original method was inspired by the Modified Julian date system currently used by astronomers, the writers and producers have selected numbers using different methods over the years, some more arbitrary than others. This makes it impossible to convert all stardates into

calendar used in Java, Indonesia

extension of the Gregorian calendar before its introduction

Roman chronological and calendrical text

renaming of months and days of week in Turkmenistan

Nepalese Traditional Calendar

calendar

solar calendar that was derived from the Persian Zoroastrian calendar

calendar

13 month solar calendar

Association football scheduling agreement

extension of the regular Julian calendar

The Symmetry454 calendar (Sym454) is a proposal for calendar reform created in early 2004 by Dr. Irv Bromberg, an assistant professor at the University of Toronto, Canada (retired in 2018). It is a perennial solar calendar that conserves the traditional month pattern and 7-day week, has symmetrical equal quarters, and starts every month on Monday.

compilation of pre-Christian Celtic systems of timekeeping

ancient Chinese time unit, 12 double-hour periods

fifth century Roman author

Japanese lunisolar calendar

leap week calendar system in which weeks start on a Monday and the first week of a year starts from the Monday closest to 1 January; e.g. Thu. 31 Dec. 2009 is 2009–W53–4

Iranian calendar

Japanese lunisolar calendar

lunisolar calendar of Vietnam

traditional calendar of the Igbo

The Haabʼ () is part of the Maya calendric system. It was a 365-day calendar used by many of the pre-Columbian cultures of Mesoamerica.

religious calendar in Thailand

ancient calendar from Ethiopia and Kenya