Sarah Mitchell
The Catholic Church and the Eastern Orthodox Church have historically celebrated Easter on different dates, with the Eastern Orthodox celebration usually occurring after the Catholic one. This is due to a difference in the calculation of the date of Easter, with the Eastern Orthodox Church using the older Julian calendar and the Catholic Church using the Gregorian calendar. The Catholic Church is open to accepting a unified date for Easter, and in 2025, both denominations will celebrate Easter on the same day. This has been hailed as an opportunity to foster Christian unity.
| Characteristics | Values |
|---|---|
| Date of Easter in 2024 | Catholics: March 31; Orthodox: May 5 |
| Date of Easter in 2023 | Catholics: April 9; Orthodox: April 16 |
| Date of Easter in 2017 | Catholics and Orthodox: April 16 |
| Date of Easter in 2010, 2011, 2014, and 2017 | Catholics and Orthodox: Same date |
| Date of Easter in 2025 | Catholics and Orthodox: April 20 |
| Reason for different dates | Use of different calendars and inputs for the date of the vernal equinox and full moon |
| Desire for a common date | Yes |
| Pope Francis' stance | Open to a unified date |
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What You'll Learn
- The Catholic Church is a universal papal monarchy, while Orthodox churches are decentralised
- The Catholic Church uses the Gregorian calendar, while Orthodox churches use the Julian calendar
- The Catholic Church calculates the date of Easter independently of Passover
- The Orthodox Church calculates Easter according to the Council of Nicaea
- In 2025, Catholics and Orthodox Christians will celebrate Easter on the same day
The Catholic Church is a universal papal monarchy, while Orthodox churches are decentralised
The Catholic Church and the Orthodox Church have different structures, with the former being a universal papal monarchy and the latter being decentralised. This difference in structure contributes to the variation in Easter celebrations between the two denominations.
The Catholic Church, as a papal monarchy, has a centralised authority in the form of the Pope, who has primacy over the entire Church. This allows for a unified decision-making process and the ability to act from a single centre. On the other hand, the Orthodox Church is composed of various Orthodox churches, each with its own local and national jurisdiction, resulting in a decentralised power structure. The largest of these is the Russian Orthodox Church, with nearly 100 million members.
The Catholic Church generally follows the Gregorian calendar, introduced by Pope Gregory XIII in 1582, which replaced the Julian calendar in Catholic countries. As such, Catholics and much of the rest of the world celebrated Easter on March 31, 2024.
In contrast, the Orthodox Church continues to follow the older Julian calendar, established by Julius Caesar in 45 B.C., for calculating the date of Easter (also known as Pascha). This difference in calendars often results in the Orthodox celebration of Easter falling on a different date than the Catholic one. In 2024, for example, the Orthodox observed Easter on May 5. However, there are exceptions, such as in 2025, when both denominations will celebrate Easter on the same date: April 20.
Despite their differences, there have been ongoing efforts towards unity between the Catholic and Orthodox Churches. Pope Francis has expressed his desire for full communion between the two denominations and has called for a common date for Easter. Ecumenical Patriarch Bartholomew of Constantinople, who leads the world's Orthodox Christians, has also acknowledged the importance of finding a common date for Easter as a step towards repairing old conflicts.
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The Catholic Church uses the Gregorian calendar, while Orthodox churches use the Julian calendar
The Catholic Church and the Orthodox Church have a long history of celebrating Easter on different dates. This is due to the different calendars they use: the Catholic Church uses the Gregorian calendar, while Orthodox churches use the Julian calendar.
The Gregorian calendar was established in 1582, officially replacing the Julian calendar in Catholic countries. By the 1900s, the Gregorian calendar's more accurate way of connecting months to the length of the year had been accepted across the world. However, Eastern Orthodox religions continue to observe the Julian calendar for Easter, which usually takes place after the celebrations in Western Churches.
The difference in calendars leads to a difference in the calculation of the vernal equinox, which is used in the formula to determine the date of Easter. The Catholics/Protestants count the vernal equinox as being on March 21, while the Orthodox count it as being on April 3. This difference can create a gap of up to a month between the Eastern and Western Easter dates.
In recent years, there have been efforts to unify the Easter celebrations. Pope Francis has expressed his desire for Catholics and Orthodox Christians to attain full communion and has called for a single Easter date to foster Christian unity. In 2025, a remarkable coincidence occurred where both the Eastern and Western churches celebrated Easter on the same day, April 20. This provided an opportunity for all Christians to take a step towards unity around a common date for Easter.
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The Catholic Church calculates the date of Easter independently of Passover
The Catholic Church, along with most Protestant communities, uses the Gregorian calendar to determine the date of Easter. This calendar was introduced by Pope Gregory XIII in 1582, officially replacing the Julian calendar in Catholic countries. The Gregorian calendar connects the months more accurately to the length of the year.
The Orthodox Church, on the other hand, continues to follow the Julian calendar when calculating the date of Easter (or Pascha). This is despite the fact that the Revised Julian calendar is used by the Orthodox Church for most other purposes, which largely aligns with the Gregorian calendar.
The difference in calendars used by the Catholic and Orthodox Churches results in different dates for Easter. In 2024, for example, Catholics and much of the rest of the world celebrated Easter on March 31, while the Orthodox celebrated Easter on May 5.
The Catholic Church has expressed a desire for a unified date for Easter, with Pope Francis stating that the Church is "open to accepting the date that everyone wants: a date of unity." In 2025, a coincidence will lead to Catholics and Orthodox Christians celebrating Easter on the same day, April 20, providing an opportunity for all Christians to take a step towards unity.
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The Orthodox Church calculates Easter according to the Council of Nicaea
The Orthodox Church continues to follow the Julian calendar when calculating the date of Easter, while the rest of Christianity, including the Catholic Church, uses the Gregorian calendar. The Julian calendar was introduced by Julius Caesar in 45 B.C. and was officially replaced by the Gregorian calendar in Catholic countries in 1582.
The difference in calendars results in different dates for the vernal equinox, which is considered to be March 21 by Catholics and April 3 by the Orthodox Church. This difference can create a gap of up to a month between the Catholic and Orthodox Easter dates. However, if there is no full moon between March 21 and April 3, and the first full moon after April 3 falls on a Sunday or Monday, then Catholic and Orthodox Easter will be celebrated on the same Sunday.
In recent years, there have been calls for a unified date for Easter across all Christian denominations. Pope Francis has expressed his desire for Christians to unite around a common date, and Ecumenical Patriarch Bartholomew of Constantinople has urged him to accept the Julian calendar for the Catholic celebration of Easter. In 2025, both the Gregorian and Julian calendars coincide, providing an opportunity for all Christians to celebrate Easter together on April 20.
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In 2025, Catholics and Orthodox Christians will celebrate Easter on the same day
Christians have celebrated Easter on various days throughout the Church's 2,000-year history, and the scheduling has been a source of controversy. While Catholics and Orthodox Christians both accept the first seven Ecumenical Councils of the Church, they differ in key areas, most notably the primacy of the Pope. Another notable difference between them is the date of Easter. In 2024, for example, Catholics celebrated Easter on March 31, while the Orthodox celebrated it on May 5.
The difference in Easter dates is due to the use of different calendars. Catholics use the Gregorian calendar, introduced by Pope Gregory XIII in 1582, while the Orthodox Church continues to follow the Julian calendar, established by Julius Caesar. The two calendars use different data inputs to calculate the date of Easter. The formula is: Easter is the first Sunday after the first full moon that falls after (or on) the vernal equinox. The Catholics/Protestants count the vernal equinox as being on March 21, while the Orthodox count it as being on April 3.
The mutual celebration of Easter in 2025 is seen as an opportunity to foster togetherness and take a step towards unity among Christians. It also aligns with the efforts of the Council of Nicaea to resolve the issue of the date of Easter. While some argue that a unified date is not a significant issue for most Christian laity, who follow the traditions of their parish church, others view it as a symbolic step towards repairing old conflicts and strengthening Christian unity.
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Frequently asked questions
The difference in dates is due to the use of different calendars. Catholics use the Gregorian calendar, introduced in 1582, whereas Orthodox Christians use the older Julian calendar. This results in different calculations for the date of Easter, with the Orthodox date usually falling after the Catholic one.
Both the Orthodox and Catholic calculations for Easter are based on the first full moon after the vernal equinox. However, they use different dates for the equinox and sometimes different full moons, resulting in a different date for Easter.
There have been calls for a common date for Easter, with Pope Francis expressing his desire for unity. In 2025, both Catholics and Orthodox Christians will celebrate Easter on the same day, April 20, due to a coincidence in the calendars. This has been seen as an opportunity to promote togetherness and take a step towards a unified date.
