List of adoption dates of the Gregorian calendar by country explained

This is a list of adoption dates of the Gregorian calendar by country. For explanation, see the article about the Gregorian calendar.

Except where stated otherwise, the transition was a move by the civil authorities from the Julian to the Gregorian calendar. In religious sources it could be that the Julian calendar was used for a longer period of time, in particular by Protestant and Eastern Orthodox churches. The historic area does not necessarily match the present-day area or country. The column "Present country" only provides a logic search entry. With a few exceptions, the former colonies of European powers are not shown separately.

There are only four countries which have not adopted the Gregorian calendar: Ethiopia (Ethiopian calendar), Nepal (Vikram Samvat and Nepal Sambat), Iran and Afghanistan (Solar Hijri calendar).[1] Thailand has adopted the Gregorian calendar for days and months, but uses its own era for years: the Buddhist era. The partially recognized Republic of China (Taiwan) also uses its own era, the Minguo era.

List

Legend

FlagPresent countryHistoric areaYearDate of the
last day
before the
change
Date of the
first day
after the
change
Days
omitted
ParticularsSource
AlbaniaAlbaniadata-sort-value="1912-11-28"191214 Nov28 Nov13Albanian Catholics have used the Gregorian calendar since 5 Oct 1583.[2] [3]
ArmeniaTranscaucasian Democratic Federative Republicdata-sort-value="1918-05-01"191817 Apr1 May13
AustriaCarinthiadata-sort-value="1583-12-25"158314 Dec25 Dec10
AustriaLower Austriadata-sort-value="1583-10-31"158320 Oct31 Oct10
AustriaSalzburgdata-sort-value="1583-02-21"158310 Feb21 Feb10
AustriaStyriadata-sort-value="1583-12-22"158311 Dec22 Dec10
AustriaTyrol, Further Austriadata-sort-value="1583-10-15"15834 Oct15 Oct10[4]
AustriaUpper Austriadata-sort-value="1583-10-31"158320 Oct31 Oct10
AzerbaijanTranscaucasian Democratic Federative Republicdata-sort-value="1918-05-01"191817 Apr1 May13
BelarusGrand Duchy of Lithuaniadata-sort-value="1586-01-01"158521 Dec1 Jan
(1586)
10[5]
BelarusLithuania Governoratedata-sort-value="1800-01-12"180011 Jan1 Jan-11Return to the Julian calendar
BelarusGrodno Governoratedata-sort-value="1915-09-05"191522 Aug5 Sept13
BelarusSoviet Russiadata-sort-value="1918-02-14"191831 Jan14 Feb13
BelgiumFlandersdata-sort-value="1582-12-25"158214 Dec25 Dec10Edict of Francis, Duke of Anjou followed[6]
BelgiumLiègedata-sort-value="1583-02-21"158310 Feb21 Feb10Edict of Philip II of Spain followed[7] [8]
BelgiumSouthern Netherlandsdata-sort-value="1582-12-31"158220 Dec31 Dec10or one day later; areas under Spanish rule: Artois, occupied Brabant, occupied Flanders, Hainaut, Limburg, Luxemburg, Namur[9] [10]
BulgariaBulgariadata-sort-value="1916-04-14"191631 Mar14 Apr13
CambodiaFrench colonial empiredata-sort-value="1863-00-00"1863N/APreviously used the Burmese calendar.
CanadaFrench colonial empiredata-sort-value="1582-12-20"15829 Dec20 Dec10
CanadaNova Scotiadata-sort-value="1710-10-14"171013 Oct3 Oct-11Return to the Julian calendar
CanadaBritish Empiredata-sort-value="1752-09-14"17522 Sep14 Sep11
ChinaChinadata-sort-value="1912-11-12"191112 "11th Month"1 Jan
(1912)
N/APreviously used the Chinese calendar. Because of a civil war, the official transition did not end until 1929, with Minguo year numbering remaining in use until 1949. [11]
Czech RepublicBohemiadata-sort-value="1584-01-17"15846 Jan17 Jan10
Czech RepublicMoraviadata-sort-value="1584-10-26"158415 Oct26 Oct10Estates initially refused the change ordered early October.
Czech RepublicSilesiadata-sort-value="1584-01-17"15846 Jan17 Jan10Excluding the Duchy of Krnov
Czech RepublicDuchy of Krnovdata-sort-value="1584-03-17"15846 Mar17 Mar10
DenmarkDenmark-Norwaydata-sort-value="1700-03-01"170018 Feb1 Mar11
EgyptEgyptdata-sort-value="1875-09-11"18756 Epag.11 SeptN/APreviously used the Alexandrian calendar for fiscal purposes[12]
EstoniaEstoniadata-sort-value="1918-03-01"191815 Feb1 Mar13
Faroe IslandsNorwaydata-sort-value="1700-11-28"170016 Nov28 Nov11
FranceFrancedata-sort-value="1582-12-20"15829 Dec20 Dec10Excluding Alsace and Lorraine[13]
FranceFrancedata-sort-value="1793-09-24"179323 Sep3 Vend. (II)N/AIntroduction of the French Republican calendar
FranceFrancedata-sort-value="1806-01-01"180510 Niv.
(XIV)
1 Jan
1806
N/AThe French Republican calendar ended.
FranceSedandata-sort-value="1582-12-20"15829 Dec20 Dec10
FranceAustrian Upper Alsace and Breisgaudata-sort-value="1583-10-24"158313 Oct24 Oct10[14]
FranceRoman Catholic Archdiocese of Strasbourgdata-sort-value="1583-11-27"158316 Nov27 Nov10
FranceAlsace, Protestant parts (except Mulhouse, see below), i.e. Strasbourg, and, on same date or shortly after, Protestant parishes over Alsacedata-sort-value="1682-02-16"16825 Feb16 Feb10
FranceLorrainedata-sort-value="1582-12-20"15829 Dec20 Dec10
FranceLorrainedata-sort-value="1735-00-00"1735-11Return to the Julian calendar
FranceLorrainedata-sort-value="1760-02-28"176016 Feb28 Feb11
FranceMulhousedata-sort-value="1701-01-12"170031 Dec12 Jan
(1701)
11
GermanyAachendata-sort-value="1583-01-11"158231 Dec11 Jan (1583)10
GermanyAugsburgdata-sort-value="1583-02-24"158313 Feb24 Feb10
GermanyMargraviate of Baden-Badendata-sort-value="1583-11-27"158316 Nov27 Nov10
GermanyDuchy of Bavaria, Prince-Bishopric of Regensburg, Prince-Bishopric of Freising, Prince-Bishopric of Eichstättdata-sort-value="1583-10-16"15835 Oct16 Oct10
GermanyBiberachdata-sort-value="1603-02-23"160312 Feb23 Feb10Protestants did not largely accept the new calendar until 30 Nov 1604.
GermanyElectorate of Cologne, Imperial City of Colognedata-sort-value="1583-11-13"15832 Nov13 Nov10[15] [16]
GermanyPrince-Bishopric of Constancedata-sort-value="1584-02-19"15848 Feb19 Feb10
GermanyPrince-Provostry of Ellwangendata-sort-value="1583-02-25"158314 Feb25 Feb10
GermanyFurther Austriadata-sort-value="1583-10-15"15834 Oct15 Oct10Including Breisgau, Swabian Austria, Ortenau
GermanyPrince-Bishopric of Hildesheimdata-sort-value="1631-03-26"163115 Mar26 Mar10Excluding the city of Hildesheim itself
GermanyHildesheimdata-sort-value="1632-12-25"163214 Dec25 Dec10
GermanyDuchy of Jülich, Duchy of Bergdata-sort-value="1583-11-13"15832 Nov13 Nov10
GermanyKaufbeurendata-sort-value="1583-02-24"158313 Feb24 Feb10
GermanyLusatiadata-sort-value="1584-01-17"15846 Jan17 Jan10Some Upper Lusatian towns delayed adoption, latest was Königsbrück in May 1584.
GermanyElectorate of Mainzdata-sort-value="1583-11-22"158311 Nov22 Nov10Local resistance in Erfurt until 1700
GermanyPrince-Bishopric of Mindendata-sort-value="1668-02-12"16681 Feb12 Feb10
GermanyPrince-Bishopric of Münster, Duchy of Cleves, County of Markdata-sort-value="1583-11-27"158316 Nov27 Nov10
GermanyPrince-Bishopric of Osnabrückdata-sort-value="1624-11-25"162414 Nov25 Nov10
GermanyPrince-Bishopric of Paderborndata-sort-value="1585-06-27"158516 Jun27 Jun10
GermanyElectoral Palatinatedata-sort-value="1686-02-22"168611 Feb22 Feb10
GermanyDuchy of Palatinate-Neuburgdata-sort-value="1615-12-24"161513 Dec24 Dec10
GermanyPrince-Bishopric of Passaudata-sort-value="1582-10-15"15824 Oct15 Oct10
GermanyRavensburgdata-sort-value="1584-02-19"15848 Feb19 Feb10
GermanyElectorate of Trierdata-sort-value="1583-10-15"15834 Oct15 Oct10
GermanyDuchy of Westphaliadata-sort-value="1584-07-12"15841 Jul12 Jul10
GermanyPrince-Bishopric of Würzburgdata-sort-value="1583-11-15"15834 Nov15 Nov10
GermanyGermany, Protestant partsdata-sort-value="1700-03-01"170018 Feb1 Mar11
GeorgiaTranscaucasian Democratic Federative Republicdata-sort-value="1918-05-01"191817 Apr1 May13[17]
GreeceGreecedata-sort-value="1923-03-01"192315 Feb1 Mar13Excluding Mount Athos[18]
HungaryHungarydata-sort-value="1587-11-01"158721 Oct1 Nov10
IcelandNorwaydata-sort-value="1700-11-28"170016 Nov28 Nov11
IrelandO'Neill and O'Donnell Gaelic Lordships in Ulster158410Papal dispensation to return to Julian calendar applied for in 1630, in operation by 1641[19]
IrelandKingdom of Irelanddata-sort-value="1752-09-14" 17522 Sept14 Sept11The British Calendar (New Style) Act 1750 also applied to Ireland (as stated in its preamble). For details, see Calendar Act: Ireland.
Italyvariousdata-sort-value="1582-10-15"15824 Oct15 Oct10
ItalyCounty of Tyrol, Prince-Bishopric of Brixendata-sort-value="1583-10-15"15834 Oct15 Oct10Brixen possibly one day later
JapanJapandata-sort-value="1873-01-01"18722 "12th month"1 Jan
(1873)
N/APreviously used the Japanese calendar. Japanese era names still remain in use.
LaosFrench colonial empiredata-sort-value="1889-00-00"1889N/APreviously used the Burmese calendar.
LatviaCourlanddata-sort-value="1617-00-00"161710[20] [21]
LatviaCourlanddata-sort-value="1796-02-08"17967 Feb28 Jan-11Return to the Julian calendar
LatviaCourlanddata-sort-value="1915-05-25"191511 May25 May13
LatviaLivlanddata-sort-value="1915-09-05"191522 Aug5 Sept13
LithuaniaGrand Duchy of Lithuaniadata-sort-value="1586-01-01"158521 Dec1 Jan
(1586)
10[22]
LithuaniaLithuania Governoratedata-sort-value="1800-01-12"180011 Jan1 Jan-11Return to the Julian calendar
LithuaniaKovno and Vilna Governoratesdata-sort-value="1915-05-25"191511 May25 May13[23]
LithuaniaDuchy of Prussiadata-sort-value="1610-09-02"161022 Aug2 Sept10North eastern Ducal Prussia is now part of Lithuania.
LuxembourgDuchy of Luxemburgdata-sort-value="1582-12-31"158220 Dec31 Dec10
MontenegroYugoslaviadata-sort-value="1919-01-28"191914 Jan28 Jan13
MyanmarBurma (British Empire)data-sort-value="1885-00-00"1885N/APreviously used the Burmese calendar.
NetherlandsBrabantdata-sort-value="1582-12-25"158214 Dec25 Dec10Edict of Francis, Duke of Anjou followed[24]
NetherlandsDrenthedata-sort-value="1701-05-12"170130 Apr12 May11
NetherlandsFrisiadata-sort-value="1701-01-12"170031 Dec12 Jan
(1701)
11
NetherlandsGelderlanddata-sort-value="1700-07-12"170030 Jun12 Jul11
NetherlandsGroningen (city)data-sort-value="1583-03-12"15831 Mar12 Mar10Edict of Philip II of Spain was: 10 followed by 21 February (proclaimed later)[25] [26]
NetherlandsGroningen (city)data-sort-value="1594-11-20"159419 Nov10 Nov-10Return to the Julian calendar
NetherlandsGroningen (province)data-sort-value="1701-01-12"170031 Dec12 Jan
(1701)
11Stad and Ommelanden
NetherlandsHollanddata-sort-value="1583-01-12"15831 Jan12 Jan10Edict of Francis, Duke of Anjou followed later on
NetherlandsOverijsseldata-sort-value="1700-12-12"170030 Nov12 Dec11
NetherlandsStates Generaldata-sort-value="1582-12-25"158214 Dec25 Dec10Edict of Francis, Duke of Anjou followed
NetherlandsUtrechtdata-sort-value="1700-12-12"170030 Nov12 Dec11
NetherlandsZeelanddata-sort-value="1582-12-25"158214 Dec25 Dec10Edict of Francis, Duke of Anjou followed
North KoreaJoseondata-sort-value="1896-01-01"189516 "11th month"1 Jan
(1896)
N/APreviously used the Korean calendar. In addition to the Gregorian calendar, the Juche calendar is in use.
North MacedoniaYugoslaviadata-sort-value="1919-01-28"191914 Jan28 Jan13
NorwayDenmark-Norwaydata-sort-value="1700-03-01"170018 Feb1 Mar11
PolandPolanddata-sort-value="1582-10-15"15824 Oct15 Oct10Local resistance
PolandDuchy of Prussiadata-sort-value="1610-09-02"161022 Aug2 Sept10Southern Ducal Prussia is now part of Poland
PolandSilesiadata-sort-value="1584-01-17"15846 Jan17 Jan10Excluding Wrocław, Wąsosz, Wołów, Bolesławiec, Świdnica
PolandWrocław, Wąsosz, Wołów, Bolesławiecdata-sort-value="1584-01-29"158418 Jan29 Jan10
PolandŚwidnicadata-sort-value="1584-01-22"158411 Jan22 Jan10
PolandMargraviate of Brandenburgdata-sort-value="1700-03-01"170018 Feb1 Mar11Along with the other Prostestant Imperial Estates
PortugalPortuguese Empiredata-sort-value="1582-10-15"15824 Oct15 Oct10
RomaniaTransylvaniadata-sort-value="1590-12-25"159014 Dec25 Dec10
RomaniaRomaniadata-sort-value="1919-04-14"191931 Mar14 Apr13[27]
RussiaDuchy of Prussiadata-sort-value="1610-09-02"161022 Aug2 Sept10Northern Ducal Prussia is now part of Russia.
RussiaRussiadata-sort-value="1918-02-14"191831 Jan14 Feb13[28]
Saudi ArabiaSaudi Arabiadata-sort-value="2016-10-01"201628 DaH (1437)1 OctN/APreviously used the Islamic calendar.[29] [30]
SerbiaYugoslaviadata-sort-value="1919-01-28"191914 Jan28 Jan13[31]
SloveniaDuchy of Carnioladata-sort-value="1583-10-15"15834 Oct15 Oct10
SloveniaDuchy of Styriadata-sort-value="1583-12-22"158311 Dec22 Dec10
SpainSpanish Empiredata-sort-value="1582-10-15"15824 Oct15 Oct10
South KoreaJoseondata-sort-value="1896-01-01"189516 "11th month" 1 Jan
(1896)
N/APreviously used the Korean calendar.
SwedenSwedish Empiredata-sort-value="1700-03-11"170028 Feb1 Mar1Including Finland; introduction of the Swedish calendar
SwedenSwedish Empiredata-sort-value="1712-03-12"171230 Feb
(sic)
1 Mar-1Including Finland; return to the Julian calendar
SwedenSwedendata-sort-value="1753-03-01"175317 Feb1 Mar11Including Finland
SwitzerlandRoman Catholic Diocese of Baseldata-sort-value="1583-10-31"158320 Oct31 Oct10
SwitzerlandLuzern, Uri, Schwyz, Zug, Freiburg, Solothurn, Le Landerondata-sort-value="1584-01-22"158411 Jan22 Jan10
SwitzerlandObwalden, Nidwaldendata-sort-value="1584-02-22"158411 Feb22 Feb10
SwitzerlandThurgau, Appenzell Innerrhoden, Appenzell Ausserrhodendata-sort-value="1584-00-00"158410
SwitzerlandAppenzell Ausserrhodendata-sort-value="1597-00-00"1597-10Return to the Julian calendar
SwitzerlandLower Valaisdata-sort-value="1623-00-00"162310
SwitzerlandGraubünden (Catholic parts)data-sort-value="1623-00-00"1623–162410
SwitzerlandValaisdata-sort-value="1655-03-11"165528 Feb11 Mar10
SwitzerlandSwitzerland, Protestant partsdata-sort-value="1701-01-12"170031 Dec12 Jan
(1701)
11Basel, Bern, Neuchâtel, Sargans, Schaffhausen, Geneva and Zürich
SwitzerlandGlarus (Catholic part)data-sort-value="1701-01-12"170031 Dec12 Jan
(1701)
11
SwitzerlandCity of St. Gallendata-sort-value="1724-00-00"172411
SwitzerlandGlarus (Protestant part)data-sort-value="1798-07-04"179822 Jun4 Jul11
SwitzerlandAppenzell Ausserrhodendata-sort-value="1798-12-25"179813 Dec25 Dec11
SwitzerlandGraubünden (Protestant part)data-sort-value="1783-00-00"1783–181111–12Communes changed at different times. Oberengadin and Bergel changed in 1783. In Schiers and Grüsch, 25 Dec 1811 was followed by 7 Jan 1812.
ThailandSiamdata-sort-value="1889-04-01"18891 AprN/APreviously used the Thai lunar calendar. The year numbering followed the Rattanakosin Era until 1912, when it was replaced by the Buddhist era; see Thai solar calendar.
TurkeyOttoman Empiredata-sort-value="1917-03-01"191715 Feb1 Mar13The year numbering followed the Rumi calendar until 1 Jan 1926, when the Anno Domini era was adopted.
UgandaBritish Empiredata-sort-value="1894-01-13"189331 Dec13 Jan (1894)12
UkraineUkrainian People's Republicdata-sort-value="1918-03-01"191815 Feb1 Mar13[32]
United KingdomKingdom of Great Britain and
Kingdom of Ireland
data-sort-value="1752-09-14"17522 Sept14 Sept11The Calendar (New Style) Act 1750 was passed to ensure alignment with the rest of Europe, but made no reference to Gregory.
United States of AmericaFrench colonial empire and
Spanish Empire
data-sort-value="1582-12-20"15829 Dec20 Dec10
United States of AmericaBritish Empiredata-sort-value="1752-09-14"17522 Sept14 Sept11Some States adopted as their Common Law the laws of England in 1607, prior to the New Style Calendar Act.
United States of AmericaRussian Empiredata-sort-value="1867-10-18"18676 Oct18 Oct11Alaska adopted the Gregorian calendar on incorporation into the United States, which preceded adoption by Russia. The International Date Line was changed, so only 11 days were omitted (a Friday was followed by another Friday).[33]

See also

Notes and References

  1. Web site: Heydari-Malayeri . M. . A concise review of the Iranian calendar . 2022-04-15 . aramis.obspm.fr.
  2. Web site: Program Operations Manual System (POMS): GN00307.180 Gregorian Julian Calendar. Social Security Administration. 26 August 2005. 2 October 2019.
  3. Web site: 5th October 1583, Gregorian calendar began to be used in Albania. Qendra Mbarëkombëtare e Koleksionistëve Shqiptarë. 5 October 2019. 28 December 2019.
  4. Book: Steinmetz . Dirk . Die Gregorianische Kalenderreform von 1582 . 2011 . Oftersheim . 978-3-943051-00-1 . 466-470.
  5. Arthur Giry, „Zur gregorianische Kalendarreform in Polen“, in: Mittheilungen des Institut für Österreichische Geschichtsforschung, vol. VI, 1885, pp. 626 seqq.
  6. Archief voor vaderlandsche, en inzonderheid vriesche geschiedenis, part 2, p.19-26
  7. De Chronologie van de Middeleeuwen en de Moderne tijden in de Nederlanden, door E. I. STRUBBE en L. VOET, 1960 (PDF), p. 497
  8. Geschiedkundige Kring kanunnik Daris Borgloon, Kroniek van Borgloon
  9. Hoe schrijf ik de geschiedenis van mijn gemeente? (PDF), p. 94
  10. Weis . Norbert . Über die Abbildung der Zeit durch Kalender . Verwaltung und Management . 2006 . 12 . 1 . 4-6 . Nomos Verlagsgesellschaft mbH . German.
  11. original text here claimed that Taiwan still uses Minguo, but that is contradicted by the use of Common year numbering on gov.tw .
  12. https://books.google.com/books?id=4llHAQAAIAAJ&pg=PA1348 United States Congressional Serial Set, Volume 1673
  13. http://adsabs.harvard.edu/full/1920PA.....28...18L The Reform of the Julian Calendar, p.24-25
  14. Web site: The Perpetual Calendar. Nørby. Toke. 29 February 2000. 2 October 2019.
  15. Book: Aitzing . Michael von . Historische Beschreibung Deß, so sich nach negst gehaltenem Kayserlichen Reichstag zu Augspurg (vber alles das, welches zuuor in Relatione Historica des Achischen vnnd Cöllnischen handels wegen erzelt) volgendts noch weytter im Heyligen Reich Teutscher Nation verlauffen vnnd zugetragen hat . 1584 . von Kempen . Köln . 103 . 30 July 2024.
  16. Ennen . L. . Der neue Kalender und der Jahresanfang, insbesondere im deutschen Reiche . Monatsschrift für die Geschichte Westdeutschlands . 1878 . 4 . 1878 . 470 . 2 August 2024.
  17. https://sites.google.com/site/shekitarixi/teqvim Законъ о введенiи въ ЗакавказьѢ новаго стиля.
  18. On 10/23 March 1924 the Greek Orthodox Church adopted the Revised Julian calendar. While the date is the same as the Gregorian until 2800, the rule for centennial years is that only those giving remainder 200 or 600 on division by 900 are leap years.
  19. Web site: Morgan . Hiram . 2006 . 'The Pope's new invention': the introduction of the Gregorian calendar in Ireland, 1583-1782 . 2023-01-10 . CELT, the Corpus of Electronic Texts.
  20. Book: Ginzel . Friedrich Karl . Handbuch der mathematischen und technischen Chronologie; das Zeitrechnungswesen der Völker . 3 . 1914 . J.C. Hinrichs . Leipzig . 266, 271, 295 . German.
  21. Book: Dr Hermann Grotefend. Taschenbuch der Zeitrechnung des deutschen Mittelalters und der Neuzeit. 1922. Hanover. 27.
  22. Arthur Giry, „Zur gregorianische Kalendarreform in Polen“, in: Mittheilungen des Institut für Österreichische Geschichtsforschung, vol. VI, 1885, pp. 626 seqq.
  23. cf. 5th ordinance of 21 May 1915, in: Verordnungsblatt der Deutschen Verwaltung für Litauen, Tilsit: Lithuania, 1915.
  24. hoofdstuk 4. het archiveringssysteem van de staten-generaal (PDF), p. 280
  25. Universiteit van het Noorden: vier eeuwen academisch leven in Groningen, part 1, p. 56
  26. note 3: Dr. J. Smit, article "De invoering van de Gregoriaansche tijdrekening in de Noordelijke Nederlanden" in "Bijdragen voor Vaderlandsche Geschiedenis en Oudheidkunde", VI series, part VIII, 1929
  27. Monitorul Oficial al României, nr. 274, 6 martie 1919, pp. 6114—6115.
  28. Web site: Grigorenko . Anatoly Markovich . История календаря в России и в СССР . The history of the calendar in Russia and the USSR . ru.
  29. Web site: KSA switches to Gregorian calendar . 3 October 2016. Rasooldeen, Mohammed. Hassan, Rashid .
  30. News: Saudi Arabia adopts the Gregorian calendar . . 15 December 2016.
  31. https://www.banjalukaforum.com/viewtopic.php?f=27&t=9505 Zakon o izjednačenju starog i novog kalendara.
  32. Україна від найдавніших часів до сьогодення: Хронологічний довідник. — К., 1995. — С. 261.
  33. Book: Dershowitz . Nachum . Reingold . Edward M. . 2008 . Calendrical Calculations . Calendrical Calculations . . Cambridge University Press . 47 . 9780521885409 .