Western Easter
Sunday, April 24, 2011
Gregorian computus. Golden number 17, epact 25, Paschal full moon April 17.
Easter 2011
Easter 2011: Sunday, April 24
In 2011 Easter falls on Sunday, April 24, 2011 for Western and Orthodox churches alike: the Gregorian and the Julian reckoning arrive at the same Sunday.
Orthodox Easter
Sunday, April 24, 2011
Julian computus: April 11 in the Julian calendar, plus 13 days to reach the Gregorian calendar.
Both Easters fall on April 24 in 2011. They last fell on the same day in 2010 (April 4). They next fall on the same day in 2014 (April 20).
Western · Apr 24
Orthodox · Apr 24
MarchAprilMayThe moving feasts of 2011
Western feasts, 2011
| Feast | Date | From Easter |
|---|---|---|
| Shrove Tuesday | Tuesday, March 8, 2011 | −47 days |
| Ash Wednesday | Wednesday, March 9, 2011 | −46 days |
| Palm Sunday | Sunday, April 17, 2011 | −7 days |
| Maundy Thursday | Thursday, April 21, 2011 | −3 days |
| Good Friday | Friday, April 22, 2011 | −2 days |
| Holy Saturday | Saturday, April 23, 2011 | −1 day |
| Easter Sunday | Sunday, April 24, 2011 | Easter Sunday |
| Easter Monday | Monday, April 25, 2011 | +1 day |
| Ascension Day | Thursday, June 2, 2011 | +39 days |
| Pentecost | Sunday, June 12, 2011 | +49 days |
Orthodox feasts, 2011
| Feast | Date | From Easter |
|---|---|---|
| Clean Monday | Monday, March 7, 2011 | −48 days |
| Palm Sunday | Sunday, April 17, 2011 | −7 days |
| Great and Holy Friday | Friday, April 22, 2011 | −2 days |
| Pascha (Easter Sunday) | Sunday, April 24, 2011 | Easter Sunday |
| Ascension | Thursday, June 2, 2011 | +39 days |
| Pentecost | Sunday, June 12, 2011 | +49 days |
Each date is Easter Sunday plus or minus a fixed number of days; the offsets and their sources are on the about page. Observance varies by church and by country. Whether a feast is a day off work is a matter of each country’s law: Holidays lists each country’s public holidays, off the open Nager.Date database.
How early is Easter in 2011?
April 24 is date 34 of the 35 that Western Easter can take, March 22 to April 25: 33 days after the earliest possible date and 1 day before the latest. Of the 201 Easters from 1900 to 2100, 197 fall on an earlier date than this one and 2 fall on a later date. One other year in that span shares the date: 2095. Before 2011, Western Easter last fell on April 24 in 1859; after 2011 it next does in 2095.
In the 2010s Western Easter ran from March 27 (2016) to April 24 (2011); 2011’s April 24 is the latest of the ten. Across the twenty-first century (2001–2100) Western Easter falls on April 24 in 2 years, and the Western and Orthodox Easters share a Sunday in 31 years.
Orthodox Easter on April 24 is April 11 in the Julian calendar; 13 days carry it to the Gregorian calendar in 2011. From 1900 to 2100 Orthodox Easter falls on an earlier Gregorian date in 116 years and on a later one in 77 years; it falls on the same date in 1927, 1938, 1949, 2022, 2033, 2044, 2095.
The earliest and latest Easters from 1900 to 2100, with how often each date occurs, are on their own page.
The arithmetic for 2011
17Golden number: the year’s place in the 19-year cycle of the moon, (2011 mod 19) + 1.
25Gregorian epact: the age of the reckoned moon at the start of the year.
April 17Paschal full moon of the Gregorian reckoning, a Sunday. Easter is the Sunday after it.
April 22Paschal full moon of the Julian reckoning in Gregorian dates (Julian April 9), a Friday.
The two algorithms, worked for 2011
- Western: the Anonymous Gregorian algorithm
a=16 b=20 c=11 d=5 e=0 f=1 g=6 h=28 i=2 k=3 l=5 m=0h + l − 7m + 114 = 147, and 147 ÷ 31 = 4 remainder 23: month 4, day 23 + 1. April 24- Orthodox: Meeus’s Julian algorithm
a=3 b=2 c=16 d=19 e=1d + e + 114 = 134, and 134 ÷ 31 = 4 remainder 10: Julian April 11. Plus 13 days: April 24
How the date of Easter is calculated explains each letter. The dates on this page agree with the US Census Bureau table (Western), the 5ko.free.fr tables (Western and Orthodox), each read September 28, 2026.