Revised Julian calendar

E24072

calendar system civil calendar solar calendar

The Revised Julian calendar is a modernized version of the traditional Julian calendar, adopted by several Eastern Orthodox Churches to more closely align fixed feast dates with the Gregorian calendar while retaining the Orthodox Paschalion.

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All labels observed (10)

Label	Occurrences
Revised Julian calendar canonical	26
Revised Julian calendar (in some churches)	2
New Julian calendar	1
Revised Julian Easter calculation	1
Revised Julian calendar (for fixed feasts)	1
Revised Julian calendar (for liturgical purposes in Greece)	1
Revised Julian calendar (for some feasts)	1
Revised Julian calendar (in some jurisdictions)	1
Revised Julian calendar (liturgical)	1
Revised Julian calendar (liturgical, in practice for many parishes)	1

Statements (50)

Predicate	Object
instanceOf	calendar system ⓘ civil calendar ⓘ solar calendar ⓘ
adoptedBy	Orthodox Church of Albania ⓘ surface form: Albanian Orthodox Church Antiochian Orthodox Church ⓘ surface form: Antiochian Orthodox Christian Archdiocese Bulgarian Orthodox Church ⓘ Orthodox Church of Cyprus ⓘ surface form: Church of Cyprus Patriarchate of Constantinople ⓘ surface form: Ecumenical Patriarchate of Constantinople Greek Orthodox Church ⓘ Orthodox Church of the Czech Lands and Slovakia ⓘ Polish Orthodox Church ⓘ Romanian Orthodox Church ⓘ several Eastern Orthodox Churches ⓘ
alsoKnownAs	Milanković calendar ⓘ Revised Julian calendar ⓘ surface form: New Julian calendar
averageYearError	about 2 seconds per year relative to the tropical year ⓘ
basedOn	traditional Julian calendar ⓘ
category	Byzantine liturgical calendar ⓘ surface form: Eastern Orthodox liturgical calendar
coincidesWith	Gregorian calendar from 1900 to 2799 ⓘ
designedToAlignWith	Gregorian calendar (Western churches) ⓘ surface form: Gregorian calendar
developedAt	Pan-Orthodox Congress of 1923 ⓘ
differsFrom	Gregorian calendar after year 2800 ⓘ
easterCalculationBasedOn	Julian calendar ⓘ Orthodox Paschalion ⓘ
follows	solar year ⓘ
introducedInYear	1923 ⓘ
leapYearRule	century years divisible by 900 are leap years only if remainder is 200 or 600 ⓘ every year divisible by 4 is a leap year except some century years ⓘ
moreAccurateThan	Julian calendar ⓘ
notAdoptedBy	Armenian Apostolic Church ⓘ Coptic Orthodox Church ⓘ Eritrean Orthodox Tewahedo Church ⓘ Ethiopian Orthodox Tewahedo Church ⓘ Georgian Orthodox Church ⓘ Orthodox Church of Jerusalem ⓘ surface form: Jerusalem Patriarchate Russian Orthodox Church ⓘ Serbian Orthodox Church ⓘ Syriac Orthodox Church ⓘ
notUsedFor	calculation of Easter in Eastern Orthodoxy ⓘ
proposedBy	Milutin Milanković ⓘ
purpose	to modernize the Julian calendar ⓘ to reduce drift of fixed feasts relative to the seasons ⓘ
regionUsed	parts of Eastern Europe ⓘ parts of the Middle East ⓘ
retains	Orthodox Paschalion ⓘ
similarAccuracyTo	Gregorian calendar (Western churches) ⓘ surface form: Gregorian calendar
usedBy	some Eastern Catholic Churches of Byzantine rite ⓘ
usesFor	fixed feasts ⓘ saints' days ⓘ
yearLength	365.242222 days ⓘ

Referenced by (36)

Full triples — surface form annotated when it differs from this entity's canonical label.

Ecumenical Patriarch of Constantinople → liturgicalCalendar → Revised Julian calendar ⓘ

Gregorian calendar (Western churches) → contrastedWith → Revised Julian calendar ⓘ

Byzantine Rite → calendarSystem → Revised Julian calendar ⓘ

Great Feast in Eastern Christianity → calendarSystem → Revised Julian calendar ⓘ

Greek Orthodox Church → calendarUsed → Revised Julian calendar ⓘ

Romanian Orthodox Church → calendarUsed → Revised Julian calendar ⓘ

Bulgarian Orthodox Church → calendarUsed → Revised Julian calendar ⓘ

Antiochian Orthodox Church → followsCalendar → Revised Julian calendar ⓘ

this entity surface form: Revised Julian calendar (in some jurisdictions)

Orthodox Church of Cyprus → usesCalendar → Revised Julian calendar ⓘ

this entity surface form: Revised Julian calendar (for fixed feasts)

Orthodox Church of Albania → followsCalendar → Revised Julian calendar ⓘ

Orthodox Church in America → usesCalendar → Revised Julian calendar ⓘ

Revised Julian calendar → alsoKnownAs → Revised Julian calendar ⓘ

this entity surface form: New Julian calendar

Julian calendar → basisOf → Revised Julian calendar ⓘ

Patriarchate of Constantinople → usesCalendar → Revised Julian calendar ⓘ

Ruthenian Greek Catholic Church → usesCalendar → Revised Julian calendar ⓘ

Bulgarian Greek Catholic Church → usesCalendar → Revised Julian calendar ⓘ

Belarusian Greek Catholic Church → followsLiturgicalCalendar → Revised Julian calendar ⓘ

Ukrainian Greek Catholic Church → followsLiturgicalCalendar → Revised Julian calendar ⓘ

Eastern Christianity → usesCalendar → Revised Julian calendar ⓘ

Polish Orthodox Church → usesCalendar → Revised Julian calendar ⓘ

this entity surface form: Revised Julian calendar (for some feasts)

OCA → calendarUsage → Revised Julian calendar ⓘ

Byzantine liturgical calendar → alsoUses → Revised Julian calendar ⓘ

Macedonian Orthodox Church → usesCalendar → Revised Julian calendar ⓘ

Orthodox Paschalion → contrastsWith → Revised Julian calendar ⓘ

this entity surface form: Revised Julian Easter calculation

Milanković calendar → alsoKnownAs → Revised Julian calendar ⓘ

Nativity Fast → calendarSystem → Revised Julian calendar ⓘ

this entity surface form: Revised Julian calendar (in some churches)

Ukrainian Orthodox Church → followsCalendar → Revised Julian calendar ⓘ

Archdiocese of Thyateira and Great Britain → usesCalendar → Revised Julian calendar ⓘ

Metropolis of Denver → followsCalendar → Revised Julian calendar ⓘ

Orthodox Church of Ukraine → calendarUsed → Revised Julian calendar ⓘ

Archeparchy of Lviv → usesCalendar → Revised Julian calendar ⓘ

this entity surface form: Revised Julian calendar (liturgical)

Archeparchy of Ivano-Frankivsk → usesCalendar → Revised Julian calendar ⓘ

this entity surface form: Revised Julian calendar (liturgical, in practice for many parishes)

Greek Catholics → usesLiturgicalCalendar → Revised Julian calendar ⓘ

Midnight Office of Pascha → calendarContext → Revised Julian calendar ⓘ

this entity surface form: Revised Julian calendar (in some churches)

Orthodox churches → liturgicalCalendar → Revised Julian calendar ⓘ

Diocese of Athens → usesCalendar → Revised Julian calendar ⓘ

this entity surface form: Revised Julian calendar (for liturgical purposes in Greece)