List of calendars

A Tunisian calendar showing Islamic, Gregorian and Berber dates

This is a list of calendars.

In use

• 360-day calendar
• Akan calendar
• Armenian calendar
• Assyrian calendar
• Astronomical year numbering
• Bahá'í calendar
• Bengali calendar
• Berber calendar
• Buddhist calendar
• Chinese calendar
• Coptic calendar
• Discordian calendar
• Ethiopian calendar
• Fiscal year varies with different countries. Used in accounting only.
• Germanic calendar (still in use by Ásatrúar)
• Gregorian calendar used by most countries in the world today.
• Hebrew calendar
• Hindu calendars
• Igbo calendar used by the Igbo people.
• Indian national calendar
• ISO week date
• Iranian calendars
• Irish calendar
• Islamic calendar
• Japanese calendar (Gregorian months)
• Javanese calendar
• Juche era calendar used by North Korea
• Julian calendar
• Kurdish calendar
• Lithuanian calendar
• Malayalam calendar
• Maya calendar (parts still used by Maya Indians)
• Nanakshahi calendar
• Nepali calendar
• Nepal Sambat
• Minguo calendar used by Republic of China/Taiwan.
• Revised Julian calendar
• Romanian calendar
• Runic calendar (still in use by Ásatrúar)
• Tamil calendar
• Thai lunar calendar
• Thai solar calendar
• Tibetan calendar
• Zoroastrian calendar (including Parsi)
• Xhosa calendar (in use in South Africa)
• Yoruba calendar (in use in Nigeria)

Archaic calendars

Image of an ancient Mexican calendar

• Attic calendar
• Aztec calendar
• Babylonian calendar
• Bulgar calendar
• Byzantine calendar
• Coligny calendar
• Egyptian calendar
• Enoch calendar
• Florentine calendar
• French Republican Calendar
• Hellenic calendars
• Ancient Macedonian calendar
• Mesoamerican calendars
• Pentecontad calendar
• Positivist calendar
• Rapa Nui calendar
• Roman calendar
• Rumi calendar
• Runic calendar
• Soviet calendar (Gregorian calendar with 5- and 6-day weeks)
• Swedish calendar (used 1700–1844)

Proposed

Reform calendars

The following are proposed reforms of the Gregorian calendar

• Holocene calendar
• International Fixed Calendar (also called the International Perpetual calendar)
• Invariable Calendar
• World Calendar
• World Season Calendar
• Tranquility Calendar
• Leap week calendars
  • Pax Calendar
  • Common-Civil-Calendar-and-Time
  • Symmetry454
  • Hanke-Henry Permanent Calendar

Non-Earth calendar proposals

• Darian calendar (for Mars)

Fictional

• Discworld calendar
• Middle-earth calendar
• Stardates (from Star Trek)

See also

• Golden hat (Bronze Age lunisolar calendar)
• Urnfield culture numerals (interpreted as calendar-related)