Calculating Easter Day in 2015

  • Thread starter Natasha1
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In summary, to calculate the day of Easter in a given year, A, you need to follow the steps of determining R, S, T, B, M, C, N, and P. Once you have P, you can determine the date of Easter by using the given conditions. Using this method, it was determined that Easter Day in 2015 fell on April 5th.
  • #1
Natasha1
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When is Easter Day in 2015?

Here is a method to calculate the day of Easter.

Choose a year that we name A.
R is the remainder of the division of A by 4.
S is the remainder of the division of A by 7.
T is the remainder of the division of A by 19.
B = 19 x T + 24
M is the remainder of the division of B by 30.
C = (2 x R) + (4 x S) + (6 x M) + 5
N is the remainder of the division of C by 7.
P = M + N

If P < 10 then Easter Day is P + 22 March.
If P > 9 then Easter Day is P - 9 April.

When is Easter Day in 2015?

I do not really know how to do this, and must admit I am not sure how to even start such a problem. If anyone could help me at least start this problem and help me along the way, that would be wonderful. Thank you in advance.
 
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  • #2
Natasha1 said:
When is Easter Day in 2015?

Here is a method to calculate the day of Easter.

Choose a year that we name A.
R is the remainder of the division of A by 4.
S is the remainder of the division of A by 7.
T is the remainder of the division of A by 19.
B = 19 x T + 24
M is the remainder of the division of B by 30.
C = (2 x R) + (4 x S) + (6 x M) + 5
N is the remainder of the division of C by 7.
P = M + N

If P < 10 then Easter Day is P + 22 March.
If P > 9 then Easter Day is P - 9 April.

When is Easter Day in 2015?

I do not really know how to do this, and must admit I am not sure how to even start such a problem. If anyone could help me at least start this problem and help me along the way, that would be wonderful. Thank you in advance.
It's not clear why you can't follow the steps listed in the OP.

If you want to determine when Easter falls in 2015, clearly A = 2015, using the first step above.

Can you follow the second step, etc., and determine the date of Easter 2015?
 
  • #3
Yes sorry silly me, I took a break and came back to the question...

This is what I got...

A = 2015
R = 3
S = 6
T = 1
B = 43
M = 13
C = 113
N = 1
Therefore P = 14

I therefore conclude that in 2015 Easter Day must be on the 14 - 9 = 5 April.

Could someone just check whether I am correct please?
 
  • #4
Natasha1 said:
Yes sorry silly me, I took a break and came back to the question...

This is what I got...

A = 2015
R = 3
S = 6
T = 1
B = 43
M = 13
C = 113
N = 1
Therefore P = 14

I therefore conclude that in 2015 Easter Day must be on the 14 - 9 = 5 April.

Could someone just check whether I am correct please?
You can Google this yourself to check your calculation. :wink:
 
  • #5
I take, I am correct then
 
  • #6
Or you could look on a calendar!
 
  • #7
And i am correct :)
 
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Likes I like Serena

1. When is Easter Day in 2015?

Easter Day in 2015 falls on April 5th.

2. How is the date for Easter Day determined?

Easter is calculated as the first Sunday after the first full moon following the spring equinox.

3. Why does the date for Easter Day change every year?

The date for Easter Day is based on a lunar calendar, which means it follows the cycles of the moon rather than the standard Gregorian calendar used for most other holidays.

4. Is Easter Day celebrated on the same day all around the world?

While most Christian denominations follow the same calculation for determining Easter Day, there are some variations and differences in traditions and customs across different countries and cultures.

5. Are there any other factors that influence the date for Easter Day?

In some cases, the date for Easter Day may be influenced by specific religious or cultural traditions, such as the Orthodox Christian tradition which follows a different calendar and celebrates Easter on a different date than Western Christianity.

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