The Date of Easter for 2014

The instructions below show you how to calculate the date of Easter for any year in the modern calendar. The figures in the middle column show the calculation for the year 2014. You can use the right-hand column to calculate the date of Easter for a year of your choice.

All of the calculations are done using whole numbers. Whenever you are asked to divide and keep only the whole number, simply ignore the decimal part. For example, in Step 2, you are asked to divide the year by 4. If the year were 2007, this would give 501.75, but you ignore the decimal part and write only 501.

Some steps ask you to divide one number by another and write down the remainder. Suppose you are asked to divide 33 by 7 and write down the remainder. First, divide 33 by 7 to get 4 plus a decimal part. Now subtract 4 times 7 from 33 to get 5. That is the remainder.

Instructions For 2014 For your year
Step 1: Preparations
Write the year. 2014  
Divide the year by 100 and keep only the whole number. This is the Century Number. Call it C. C = 20 C =
Subtract 15 from C and multiply the result by 3. 15  
Divide the previous line by 4 and keep only the whole number. 3  
Add 10 to the previous line. This is the Gregorian Correction. Call it Q. Q = 13 Q =
Step 2: The Dominical Number
Divide the year by 4 and keep only the whole number. 503  
Add the year to the previous line. 2517  
Add 4 to the previous line. 2521  
Subtract Q from the previous line. 2508  
Divide the previous line by 7 and write down the remainder. 2  
Subtract the previous line from 7. This is the Dominical Number. Call it L. L = 5 L =
Step 3: The Golden Number
Divide the year by 19 and write down the remainder. 0  
Add 1 to the previous line. This is the Golden Number. Call it G. G = 1 G =
Step 4: The Julian Epact
Multiply the Golden Number, G, by 11. 11  
Subtract 10 from the previous line. This is the Julian Epact. Call it J. J = 1 J =
Step 5: The Solar Equation
Subtract 10 from the Gregorian Correction, Q. This is the Solar Equation. Call it S. S = 3 S =
Step 6: The Lunar Equation
Subtract 14 from the Century Number, C. 6  
Multiply the previous line by 8. 48  
Divide the previous line by 25 and keep only the whole number. This is the Lunar Equation. Call it M. M = 1 M =
Step 7: The Epact
Subtract the Solar Equation, S, from the Julian Epact, J. -2  
Add the Lunar Equation, M, to the previous line. -1  
If the previous line is zero or negative, add 30 to it. Repeat if necessary, until you get a positive number. 29  
Divide the previous line by 30 and write down the remainder. This is the Epact. Call it E. E = 29 E =
Step 8: The "Second Epact 25" rule
If the Golden Number, G, is more than 11 and the Epact is 25, change the Epact to 26. E = 29 E =
Step 9: The "Epact 24 is equivalent to Epact 25" rule
If the Epact is 24, change the Epact to 25. E = 29 E =
Step 10: The date of the Paschal Full Moon
If the Epact, E, is less than 24, subtract E from 44, otherwise subtract E from 74. Call this D. D = 45 D =
If D is less than 32, then the Paschal Full Moon falls on that day in March.
If D is 32 or larger, then subtract 31 from D, and the Paschal Full Moon falls on that day in April.
April 14  
Step 11: The day of the week of the Paschal Full Moon
Add 10 to D. 55  
Subtract the Dominical Letter, L, from the previous line. 50  
Divide the previous line by 7 and write down the remainder. 1  
Add 1 to the previous line. 2  
The previous line gives the day of the week on which the Paschal Full Moon falls, where Sunday is the first day of the week. Monday  
Step 12: The date of Easter
Easter is the Sunday following the day of the Paschal Full Moon. April 20  


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Last modified on 19 April 2006
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