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.

Aliases (4)

Statements (50)

Predicate	Object
instanceOf	calendar system → civil calendar → solar calendar →
adoptedBy	Albanian Orthodox Church → Antiochian Orthodox Christian Archdiocese → Bulgarian Orthodox Church → Church of Cyprus → 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 → New Julian calendar →
averageYearError	about 2 seconds per year relative to the tropical year →
basedOn	traditional Julian calendar →
category	Eastern Orthodox liturgical calendar →
coincidesWith	Gregorian calendar from 1900 to 2799 →
designedToAlignWith	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 → 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 →
usedBy	some Eastern Catholic Churches of Byzantine rite →
usesFor	fixed feasts → saints' days →
yearLength	365.242222 days →

Referenced by (20)

Subject (surface form when different)	Predicate
Bulgarian Greek Catholic Church → Eastern Christianity → Orthodox Church in America → Orthodox Church of Cyprus ("Revised Julian calendar (for fixed feasts)") → Patriarchate of Constantinople → Polish Orthodox Church ("Revised Julian calendar (for some feasts)") → Ruthenian Greek Catholic Church →	usesCalendar
Bulgarian Orthodox Church → Greek Orthodox Church → Romanian Orthodox Church →	calendarUsed
Byzantine Rite → Great Feast in Eastern Christianity →	calendarSystem
Antiochian Orthodox Church ("Revised Julian calendar (in some jurisdictions)") → Orthodox Church of Albania →	followsCalendar
Belarusian Greek Catholic Church → Ukrainian Greek Catholic Church →	followsLiturgicalCalendar
Revised Julian calendar ("New Julian calendar") →	alsoKnownAs
Julian calendar →	basisOf
Gregorian calendar (Western churches) →	contrastedWith
Ecumenical Patriarch of Constantinople →	liturgicalCalendar