
The Orthodox Church, known for its rich liturgical traditions and historical continuity, is divided into various jurisdictions, some of which adhere to the old (Julian) calendar while others follow the new (Gregorian) calendar. Churches that use the old calendar, often referred to as Old Calendarists, include the Russian Orthodox Church, the Serbian Orthodox Church, and certain factions within the Greek Orthodox Church, such as the Genuine Orthodox Church of Greece. These churches maintain the Julian calendar for liturgical purposes, preserving a connection to the pre-modern era and emphasizing a commitment to tradition. The use of the old calendar often reflects deeper theological and cultural distinctions within the Orthodox world, highlighting the diversity and complexity of its ecclesiastical practices.
| Characteristics | Values |
|---|---|
| Churches Using the Old Calendar | Russian Orthodox Church Outside Russia (ROCOR), Genuine Orthodox Church of Greece, Serbian True Orthodox Church, Bulgarian Orthodox Church (Old Calendarists), Romanian Orthodox Church (Old Calendarists), Autonomous Orthodox Metropolia of North and South America and the British Isles, Holy Orthodox Church in North America (HOCNA), Orthodox Church of Greece (Old Calendarists), Macedonian Orthodox Church (Old Calendarists), Albanian Orthodox Church (Old Calendarists) |
| Calendar Type | Julian Calendar |
| Date of Easter | Calculated using the Julian Calendar |
| Fixed Feasts | Celebrated 13 days behind the Gregorian Calendar |
| Liturgical Practices | Traditional Byzantine Rite with older liturgical texts and practices |
| Ecclesiastical Independence | Many are independent or autocephalous, not in communion with mainstream Orthodox churches |
| Theological Stance | Often more conservative, rejecting ecumenism and modern reforms |
| Geographical Presence | Primarily in Greece, Eastern Europe, and diaspora communities |
| Recognition | Not recognized by the mainstream Eastern Orthodox Churches |
| Size and Influence | Smaller communities compared to mainstream Orthodox churches |
| Historical Context | Formed in response to the adoption of the Revised Julian Calendar in the 20th century |
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What You'll Learn
- Russian Orthodox Church Abroad: Some parishes follow the old Julian calendar for liturgical purposes
- Greek Old Calendarists: A faction of the Greek Orthodox Church adhering to the old calendar
- Serbian Orthodox True Orthodox: Small groups using the old calendar, separate from the main church
- Bulgarian Orthodox Traditionalists: Certain communities maintain the old calendar despite official adoption of the new
- Romanian Orthodox Old Calendarists: A minority within the Romanian Orthodox Church observing the Julian calendar

Russian Orthodox Church Abroad: Some parishes follow the old Julian calendar for liturgical purposes
Within the broader Orthodox Christian tradition, the Russian Orthodox Church Abroad (ROCA) stands out for its adherence to the old Julian calendar in certain parishes, a practice that reflects both historical continuity and theological commitment. These parishes maintain the liturgical cycle as it was observed before the 20th-century calendar reforms, aligning their feasts, fasts, and commemorations with the Julian system. This decision is not merely nostalgic but rooted in a belief that the old calendar preserves the integrity of Orthodox worship and its connection to the Church’s ancient traditions. For instance, Christmas is celebrated on January 7th (Gregorian calendar), as it corresponds to December 25th in the Julian calendar, a date observed by the early Church.
Practically, this adherence requires careful coordination for those attending or visiting these parishes. Liturgical calendars, service schedules, and fasting guidelines differ significantly from those following the revised calendar. For example, the Great Lent begins later in the Julian calendar, and feast days like Pascha (Easter) often fall on different dates. Parishioners and visitors must consult specific ROCA resources or local parish announcements to stay aligned with the liturgical rhythm. This practice also fosters a sense of unity among old calendar parishes worldwide, as they share a common temporal framework distinct from the majority of Orthodox churches.
Theological arguments for retaining the old calendar often emphasize its role in safeguarding the Church’s unbroken tradition. Advocates argue that the calendar is not merely a tool for timekeeping but a sacred structure that shapes spiritual life. By preserving the Julian calendar, these ROCA parishes assert their commitment to pre-revolutionary Orthodox practices, which they view as untainted by modern innovations. This stance, however, can lead to challenges in ecumenical relations, as it creates a visible divide in shared feast days and liturgical life with other Orthodox jurisdictions.
For those considering attending an old calendar ROCA parish, it’s essential to approach with an open mind and a willingness to adapt. Services may feel both familiar and distinct, as the prayers and hymns remain unchanged, but the timing of their observance differs. Practical tips include verifying service times in advance, familiarizing oneself with the liturgical calendar, and engaging with parish materials to understand the theological rationale behind the old calendar. This approach not only enriches one’s spiritual experience but also deepens appreciation for the diversity within Orthodox Christianity.
In conclusion, the ROCA’s use of the old Julian calendar in some parishes is a deliberate choice that intertwines history, theology, and practice. It offers a unique window into the Orthodox tradition’s commitment to preserving its ancient roots, even as it navigates the complexities of modernity. For those drawn to this tradition, it provides a tangible connection to the past, while for others, it serves as a reminder of the richness and variety within the Orthodox faith. Understanding this practice is key to appreciating the ROCA’s distinct identity within the broader Orthodox landscape.
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Greek Old Calendarists: A faction of the Greek Orthodox Church adhering to the old calendar
Within the broader Orthodox Christian world, the Greek Old Calendarists stand out as a distinct faction within the Greek Orthodox Church, steadfastly adhering to the Julian calendar for liturgical purposes. This group emerged in the early 20th century as a reaction to the adoption of the Revised Julian calendar by the mainstream Greek Orthodox Church in 1924. The shift aimed to align the church’s calendar more closely with the Gregorian calendar used civilly, but it sparked resistance among traditionalists who viewed the change as a departure from sacred tradition. Today, the Greek Old Calendarists maintain their own ecclesiastical structures, separate from the official Church of Greece, and continue to observe key dates such as Christmas on January 7th (December 25th in the Julian calendar).
The theological underpinning of the Greek Old Calendarists’ stance is rooted in their belief that the liturgical calendar is inseparable from the church’s spiritual identity. They argue that altering the calendar disrupts the rhythm of feasts and fasts established by the early church, potentially weakening the faithful’s connection to their heritage. This perspective is not merely nostalgic but is framed as a defense of orthodoxy itself, with adherents citing warnings from prominent saints and elders against innovations in church practice. Their commitment to the old calendar is thus both a liturgical and a spiritual act, symbolizing resistance to modernization they perceive as detrimental to the faith.
Practically, life within the Greek Old Calendarist communities involves meticulous adherence to the Julian calendar’s liturgical cycle. This includes observing fasting periods, such as Great Lent, according to the old dates, which can create a stark contrast with the rest of Greek society. For instance, while most Greeks celebrate Easter in April, Old Calendarists may observe it in May. This divergence extends to daily life, where families must navigate dual calendars—one for civil obligations and another for religious duties. Despite these challenges, adherents emphasize the unity and spiritual depth they find within their communities, often describing their practices as a "living tradition" preserved against the tide of change.
Critics of the Greek Old Calendarists argue that their separation from the mainstream church fosters division and undermines the unity of Orthodoxy. However, supporters counter that their stance is not schismatic but a necessary preservation of unaltered tradition. They point to the autonomy of other Orthodox churches, such as the Russian Orthodox Church, which also adheres to the Julian calendar, as evidence that their position is not inherently divisive. The debate highlights a broader tension within Orthodoxy between adaptation to modern realities and the preservation of ancient practices, with the Greek Old Calendarists firmly positioned on the latter side.
For those interested in understanding or engaging with the Greek Old Calendarists, it is essential to approach their practices with respect for their deeply held convictions. Visitors to their churches will encounter a worship style that emphasizes tradition, with Byzantine chant, iconostasis, and liturgical Greek remaining central. Engaging in dialogue with community members can provide insights into their worldview, though it is crucial to avoid dismissive attitudes toward their calendar adherence. Ultimately, the Greek Old Calendarists serve as a living testament to the diversity within Orthodoxy, offering a unique perspective on how tradition and modernity intersect in religious life.
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Serbian Orthodox True Orthodox: Small groups using the old calendar, separate from the main church
Within the broader Orthodox Christian landscape, the Serbian Orthodox True Orthodox movement stands out as a distinct phenomenon, characterized by small, independent groups that adhere to the old Julian calendar while maintaining a separate identity from the mainstream Serbian Orthodox Church. These groups, often referred to as "True Orthodox," emerged in response to perceived ecumenism, liturgical reforms, and theological compromises within the official church. Their commitment to the old calendar is not merely a liturgical preference but a symbolic rejection of modernity and a return to what they consider the unadulterated traditions of Orthodox Christianity.
To understand their position, consider the historical context: the Serbian Orthodox Church, like many other Orthodox bodies, transitioned to the revised Julian calendar in the 20th century, aligning feast days more closely with the Gregorian calendar used in the West. However, for True Orthodox groups, this change represented a departure from sacred tradition. They argue that the old Julian calendar, used by the Church for centuries, is intrinsically tied to the spiritual rhythm of Orthodox life. For instance, these groups observe Christmas on January 7 (Gregorian calendar), maintaining the date traditionally associated with the Nativity. This adherence is not just about dates but about preserving a worldview that resists secular influence.
Practically, joining a Serbian Orthodox True Orthodox community requires a deliberate choice to step outside the mainstream. These groups often operate in small parishes or home churches, led by clergy who have broken communion with the official hierarchy. Prospective members must be prepared for a more austere and traditional liturgical experience, devoid of modern conveniences or compromises. For example, services are conducted entirely in Church Slavonic or Serbian, and the use of electronic amplification for chanting is often eschewed. Additionally, these communities emphasize strict fasting rules, such as abstaining from oil and wine on Wednesdays and Fridays throughout the year, a practice less commonly observed in the broader Serbian Orthodox Church.
A critical takeaway is that the Serbian Orthodox True Orthodox movement is not merely a calendar dispute but a broader theological and cultural stance. These groups view themselves as guardians of Orthodox purity, willing to sacrifice institutional recognition for what they believe is fidelity to tradition. While their numbers remain small, their existence highlights the diversity within Orthodoxy and the enduring appeal of traditionalism in an increasingly secular world. For those drawn to this path, it is essential to approach with humility and a willingness to embrace a way of life that prioritizes spiritual rigor over convenience.
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Bulgarian Orthodox Traditionalists: Certain communities maintain the old calendar despite official adoption of the new
Within the Bulgarian Orthodox Church, a fascinating divergence persists: while the official hierarchy adopted the revised Julian calendar in 1968, aligning with the state’s secular timekeeping, certain traditionalist communities steadfastly adhere to the old Julian calendar. This dual practice reflects a broader tension between modernization and tradition, echoing similar dynamics in other Orthodox jurisdictions. These traditionalist parishes, often referred to as "Old Calendarists," calculate feast days, fasts, and liturgical cycles according to the pre-1923 calendar, which currently lags 13 days behind the revised version. For instance, Christmas is celebrated on January 7th (new calendar equivalent) in these communities, preserving a centuries-old rhythm of worship.
The persistence of the old calendar in Bulgaria is not merely a matter of nostalgia but a theological and cultural statement. Traditionalists argue that the revised calendar disrupts the unity of the Church’s liturgical life with its historical roots, particularly the connection to the First Ecumenical Council’s directives on Paschalion calculations. Practically, this means that families in mixed calendar households must navigate conflicting feast days, such as Easter, which can fall on different Sundays. To mitigate confusion, some parishes publish dual-calendar guides, though this practice itself underscores the divide. For visitors or newcomers, attending services in these communities requires awareness of the calendar in use, as liturgical texts and hymns align with the old system.
Geographically, old calendar parishes are often found in rural areas or among diaspora communities, where cultural conservatism remains strong. In cities like Sofia, traditionalist chapels coexist alongside mainstream churches, offering a visible alternative for those seeking continuity with pre-reform practices. Notably, these communities are not formally recognized by the Bulgarian Patriarchate, leading to occasional tensions over ecclesiastical authority. Despite this, traditionalists maintain their stance through grassroots organization, often relying on elder clergy trained in the old rites and lay supporters dedicated to preserving liturgical heritage.
For those interested in engaging with these communities, it’s essential to approach with respect and openness. Services follow the traditional Byzantine Rite, with Church Slavonic or Bulgarian used extensively. Fasting rules, such as the Nativity Fast, begin on November 28th (old calendar), requiring participants to adjust their dietary practices accordingly. Visitors should inquire locally about service times, as they may differ from the state calendar’s public holidays. While the old calendar movement in Bulgaria remains a minority, its endurance highlights the resilience of tradition in the face of institutional change, offering a living testament to the diversity within Orthodox Christianity.
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Romanian Orthodox Old Calendarists: A minority within the Romanian Orthodox Church observing the Julian calendar
Within the Romanian Orthodox Church, a distinct minority known as the Romanian Orthodox Old Calendarists adheres to the Julian calendar, setting them apart from the majority who follow the revised Gregorian calendar. This group, often referred to as *Stilisti* (Old Calendarists), emerged in the early 20th century as a reaction to the Romanian Orthodox Church’s adoption of the Gregorian calendar in 1924. Their commitment to the Julian calendar is not merely a matter of tradition but a deeply held belief in preserving what they consider the authentic liturgical and spiritual heritage of Orthodoxy. This stance has led to their marginalization, yet their persistence highlights the enduring tension between tradition and reform within the Orthodox world.
The Old Calendarists in Romania are organized into several communities, the most prominent being the *Church of the Genuine Orthodox Christians of Romania*. These communities operate independently of the mainstream Romanian Orthodox Church, which they view as having deviated from canonical orthodoxy by adopting the new calendar. Their liturgical life revolves around the Julian calendar, meaning they celebrate Christmas on January 7th (Gregorian) and observe other feasts and fasts according to the old reckoning. This adherence extends to their monastic practices, theological education, and even their interactions with other Orthodox jurisdictions, as they often align with other Old Calendarist groups in Greece, Bulgaria, and Russia.
One of the most striking aspects of the Romanian Old Calendarists is their resilience in the face of societal and ecclesiastical pressure. During the communist era, they faced severe persecution, with many of their churches confiscated and their clergy imprisoned. Despite these challenges, they maintained their identity, often holding clandestine services in private homes or remote areas. Today, while their numbers remain small, they continue to attract adherents who value their uncompromising stance on tradition. For those interested in joining or learning from these communities, it is essential to approach with respect for their unique practices and to understand that their liturgical and spiritual rhythms differ significantly from the mainstream church.
A practical takeaway for anyone studying or engaging with the Romanian Orthodox Old Calendarists is to recognize the theological and cultural depth behind their choice of calendar. It is not a mere preference but a reflection of their broader commitment to preserving what they see as the unaltered faith of the early Church. Visitors to their services should be prepared for a more traditional and austere atmosphere, with longer services, stricter fasting rules, and a strong emphasis on prayer and repentance. Engaging with these communities offers a rare glimpse into a living tradition that resists modernization, providing valuable insights into the diversity and complexity of Orthodox Christianity.
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Frequently asked questions
Several Orthodox Churches continue to use the old (Julian) calendar, including the Russian Orthodox Church Outside of Russia (ROCOR), the Serbian Orthodox Church, the Georgian Orthodox Church, and various Old Calendarist jurisdictions such as the Greek Old Calendarists and the Bulgarian Orthodox Church (Alternative Synod).
A: While Orthodox Churches using the old calendar share the same liturgical foundation, there may be slight variations in practices, traditions, and observances depending on the specific jurisdiction and local customs. However, the core liturgical structure remains consistent across these churches.
A: The use of the old calendar is often tied to traditionalist perspectives and a desire to preserve historical practices. Churches that adopted the new (Revised Julian) calendar did so to align more closely with the Gregorian calendar used in civil life, though this decision remains a point of contention among some Orthodox Christians.










































