List of micronational calendars

This is a list of micronational calendars.

List

Calendar	Micronation	Type	Current calendar year	Comments
Aethodian calendars	Aethodia	Various	AE+159	Currently using the Universal Calendar, where a year is 144 days.
Annus Novus Decimal Calendar	Empire of Atlantium	Solar	10544 NE	Divides the year into 10 months
Asgardian calendar	Asgardia	Solar	8	13 month calendar
Atomic calendar	Federal Commonwealth of Sirocco	Solar	78 AE	Counts the years since the Trinity nuclear test on 16 July 1945 (1 Trinity 0).
Atovian Decimal calendar	Atovia	Solar	7	Divides the year into 10 months. Counts the years since the founding of Atovia on 5 May 2017.
Bartonian calendar	Bartonia	?	2	Every 6 months is a new year, counting since silvester 2019/20
Baustralian regnal calendar	Baustralia	Regnal	7 John 1 – 8 John 1	Regnal year of the Baustralian monarch. New year starts on the anniversary of accession.
Brelian calendar	Brelian Empire	Solar	1644	Divides the year into 12 months
Calendar of the 4 planet-nations	Different (4 nations)		1996
Cesidian calendar		Solar		Calendar of the Cesidian Church.
Cilsurian calendar	Cilsur Boronia (second use)	Solar	2023	It is a much more accurate modification of the Gregorian Calendar, while the Gregorian Calendar takes 4000 years to miss a day, the Cilsurian Calendar takes 800000 years.
Coligny Calendar	Holcetaea Jailavera (only for months with celebrations)	Lunisolar	2510	Reconstruction of a real historical calendar
Edenian calendar	Edenia		AQ 7th, 1E1
Garalian calendar	Sovereign State of Garal	Solar	Year I	12 months of 29-30-31 days and 5 or 6 complementary days. Year begins on 20 march of the gregorian calendar
Georgian Calendar	Sealand	Solar	2022 AD	The traditional.
Holocene Calendar	Florensia Jailavera	Solar	12021 HE	AD plus 10000 years
Jack Allahbarist Calendar	Kapreburg	Solar	442	Counting the years since the birth of Jack Allahbar
Lemurian Calendar	Lemuria	Solar	2348 AL
Lyteran calendar	Kingdom of Lytera	Solar	2531 AAC	Has 14 months in a year, named after Greek gods/goddesses.
Baccalieu Lunar Calendar	Republic of New Somerset	Lunar	466 A.G.M.	Has 13 months named after Roman and Greek gods/goddesses.
Maior Annis Calendar	Reektby	Lunisolar	4045	Has 9 months, each month has either 12 or 13 days, ends up to be 122 or 113 days, half the days of the georgian calendar.
Modern Northu Calendar	Northudankton	Solar	Kabaarin 8 / 2024	Has the same monthly structure as the Gregorian Calendar, but the months are divided into 4 primary days on the 1st, 11th, 21st, and last day of the month, 'Principus', and the days between, 'Interdimus'.
Molossian Calendar	Molossia	Solar	XLIII	Counts the years since the founding of Molossia in 1977 (Year I).
Neo-Romanian Calendar	Vlasynia	Solar	106/CVI A.G.U.	Has the exact same structure as the Gregorian Calendar, with the exception that it counts the years since the Great Union Day (Year 0 A.G.U.). As a result, December is the first month of the year.
New Athenian Lunisolar Calendar	New Athens	Lunisolar	2025 N.A.D.
Old Duisien Calendar	Northudankton	Solar	y 4357	Defunct predecessor to the Modern Northu Calendar. The Old Duisien Calendar Year; however, is still commonly used throughout Northudankton.
Phoklandian Calendar (PhoYear)	Phokland	Solar	2004
Prsänëan Calendar	Grand Duchy of Prsänëa	Solar	121 AA
Royal Amestrian Calendar	Amestris	Lunisolar	6 (V.L.)	Perpetual Calendar: One year is equal to 13 months of 28 days plus an extra day or two in a leap year.
Sancta Calendar	State of Sandus	Solar	MMXIX	8 day week, years begin on 1 March
Sprinske Calendar	Sprinske Empire	?	1959	65 years behind the Gregorian Calendar. More commonly used than the Revolution Calendar
Templar Calendar	Templar Kingdom	Lunisolar	906 TY	The month starts with the full moon. Month don't have to correspond to a solar year and can overlap. The new year however always starts with semana santa, a one week national holiday
Week Calendar	Principality of New Eiffel Bartonia	?	393	Counted in weeks. Every one week the year changes. Counting weekly since 23 May 2015.
Urielandish calendar	Urielandia	Solar	14	Divides the year into 13 months
Vyomanian calendar	Vyomania	Solar	2521	Divides the year into 14 months, each of 27 days except the last month with 14 days.
Xarulish calendar	Different nations	?	1004	Year 2020 is year 1000 in this calendar.