Western Easter
Sunday, April 12, 2099
Gregorian computus. Golden number 10, epact 8, Paschal full moon April 5.
Easter 2099
Easter 2099: Sunday, April 12
In 2099 Easter falls on Sunday, April 12, 2099 for Western and Orthodox churches alike: the Gregorian and the Julian reckoning arrive at the same Sunday.
Orthodox Easter
Sunday, April 12, 2099
Julian computus: March 30 in the Julian calendar, plus 13 days to reach the Gregorian calendar.
Both Easters fall on April 12 in 2099. They last fell on the same day in 2096 (April 15). They next fall on the same day in 2102 (April 9).
Western · Apr 12
Orthodox · Apr 12
MarchAprilMayThe moving feasts of 2099
Western feasts, 2099
| Feast | Date | From Easter |
|---|---|---|
| Shrove Tuesday | Tuesday, February 24, 2099 | −47 days |
| Ash Wednesday | Wednesday, February 25, 2099 | −46 days |
| Palm Sunday | Sunday, April 5, 2099 | −7 days |
| Maundy Thursday | Thursday, April 9, 2099 | −3 days |
| Good Friday | Friday, April 10, 2099 | −2 days |
| Holy Saturday | Saturday, April 11, 2099 | −1 day |
| Easter Sunday | Sunday, April 12, 2099 | Easter Sunday |
| Easter Monday | Monday, April 13, 2099 | +1 day |
| Ascension Day | Thursday, May 21, 2099 | +39 days |
| Pentecost | Sunday, May 31, 2099 | +49 days |
Orthodox feasts, 2099
| Feast | Date | From Easter |
|---|---|---|
| Clean Monday | Monday, February 23, 2099 | −48 days |
| Palm Sunday | Sunday, April 5, 2099 | −7 days |
| Great and Holy Friday | Friday, April 10, 2099 | −2 days |
| Pascha (Easter Sunday) | Sunday, April 12, 2099 | Easter Sunday |
| Ascension | Thursday, May 21, 2099 | +39 days |
| Pentecost | Sunday, May 31, 2099 | +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 2099?
April 12 is date 22 of the 35 that Western Easter can take, March 22 to April 25: 21 days after the earliest possible date and 13 days before the latest. Of the 201 Easters from 1900 to 2100, 117 fall on an earlier date than this one and 75 fall on a later date. 8 other years in that span share the date: 1903, 1914, 1925, 1936, 1998, 2009, 2020, 2093. Before 2099, Western Easter last fell on April 12 in 2093; after 2099 it next does in 2150.
In the 2090s Western Easter ran from March 30 (2092) to April 24 (2095); 2099’s April 12 is the fifth-earliest of the ten, level with 2093. Across the twenty-first century (2001–2100) Western Easter falls on April 12 in 4 years, and the Western and Orthodox Easters share a Sunday in 31 years.
Orthodox Easter on April 12 is March 30 in the Julian calendar; 13 days carry it to the Gregorian calendar in 2099. From 1900 to 2100 Orthodox Easter falls on an earlier Gregorian date in 37 years and on a later one in 159 years; it falls on the same date in 1931, 1936, 2015, 2026.
The earliest and latest Easters from 1900 to 2100, with how often each date occurs, are on their own page.
The arithmetic for 2099
10Golden number: the year’s place in the 19-year cycle of the moon, (2099 mod 19) + 1.
8Gregorian epact: the age of the reckoned moon at the start of the year.
April 5Paschal full moon of the Gregorian reckoning, a Sunday. Easter is the Sunday after it.
April 9Paschal full moon of the Julian reckoning in Gregorian dates (Julian March 27), a Thursday.
The two algorithms, worked for 2099
- Western: the Anonymous Gregorian algorithm
a=9 b=20 c=99 d=5 e=0 f=1 g=6 h=15 i=24 k=3 l=6 m=0h + l − 7m + 114 = 135, and 135 ÷ 31 = 4 remainder 11: month 4, day 11 + 1. April 12- Orthodox: Meeus’s Julian algorithm
a=3 b=6 c=9 d=6 e=2d + e + 114 = 122, and 122 ÷ 31 = 3 remainder 29: Julian March 30. Plus 13 days: April 12
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.