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In most years, Orthodox Easter follows Western Easter by one or more weeks.To determine the Orthodox Easter Sunday date, it is first necessary to find the Julian Easter Sunday date, then to add the number of days which have been "skipped" in the Gregorian calendar.
This date is the Julian calendar Orthodox Easter Sunday date for year 1995. for Greece in years 1054 to 1922) then this Julian date (e.g.
The aim of the Easter Dating Method is to maintain, for each Easter Sunday, the same season of the year and the same relationship to the preceding astronomical full moon that occurred at the time of his resurrection in 30 A. March 20 has become the important date in recent Easter dating methods.
The Gregorian calendar very closely maintains the alignment of seasons and calendar dates by having leap years in only 1 of every 4 century years, namely, those divisible exactly by 400.
For example, year 2285 gave us a PFM date of March 21, and step 2 gave us a total result of 6.
Looking at Table E, this 6 shows that this PFM date occurs on a Saturday, so we need to add 1 day to find the next Sunday, which is March 22, the Easter Sunday date for the year 2285 A. Other examples: Julian calendar example: Year 887: Step 1: PFM=A12, Step 2: 3 4 3 = 10, Step 3: A12 4 = April 16, 887 Gregorian calendar examples: Year 1987: Step 1: PFM=A13, Step 2: 4 1 3 = 8, Step 3: A13 6 = April 19, 1987 Year 2987: Step 1: PFM=A4, Step 2: 2 5 3=10, Step 3: A4 4 = April 8, 2987 Year 3987: Step 1: PFM=M27, Step 2: 1 1 3=5, Step 3: M27 2 = March 29, 3987 INDEX This accurate procedure applies to Orthodox churches, which always base their calculations on the Julian calendar and the "19 PFM dates" table. D., and takes no account whatsoever of the changes resulting from the introduction of the Gregorian calendar in 1582. These instructions show the procedure for years 1054 to 3399 A. However, this simple method continues indefinitely, because the Julian calendar always has a February 29 date in every fourth year.