Easter is calculated to follow the Jewish feast of Passover. The Jews use the Jewish calendar to calculate when Passover should occur.
Catholics and most Protestants use the new Gregorian calendar decreed by Pope Gregory XIII in 1582 to calculate the date of Easter.
The Orthodox Church uses the old Julian calendar introduced in 46 B.C.E. by Julius Caesar.
As long as you celebrate the Resurrection of Jesus Christ, does the exact date really matter?
Because the western churches use the Gregorian calendar and the eastern orthodox churches use the Julian calendar. Easter is always celebrated on the first Sunday following the first full moon after the beginning of Spring. Because the two calenders have different dates for the beginning of Spring the dates of Easter differ. According to the Gregorian calendar Spring begins on March 21, so western Easter can be between March 22 and April 25 (both dates included).
Western
(Western) Easter Sunday is 16 April (Orthodox) Easter Sunday is 23 April
In Western Easter Celebration, Easter will fall on April 9th in 2023.
Only Orthodox Easter, not Western World Easter.
All except the aprils without western and orthodox easter
In Germany Easter is celebrated on the same day as everywhere in Western Christendom.
Easter 2536 in the Western Hemisphere will fall on April 8.
No, it is the same christian ceremony. However, many Orthodox churches base their Easter date on the Julian calendar, which often differs from the Gregorian calendar that is used by many western countries.
It will be April 24, which is the same day as the Western Easter.
In 2012, Easter Orthodox (Russian, Greek, Serbian, Bulgarian +++ Easter is celebrated on April 15. one week later than Western (Protestant & Roman Catholic) Easter. Every few years the date line-up, due to a different calender: In the West - Gregorian / In the East - Justinian.
The prime meridian
Easter will be April 8 Western Time, and April 15 Eastern Time in 2012.