Western Easter
Sunday, March 28, 2100
Gregorian computus. Golden number 11, epact 19, Paschal full moon March 25.
Easter 2100
Easter 2100: Sunday, March 28
In 2100 Western Easter, reckoned in the Gregorian calendar, falls on Sunday, March 28, 2100. Orthodox Easter (Pascha), reckoned in the Julian calendar, falls on Sunday, May 2, 2100, five weeks later.
Orthodox Easter
Sunday, May 2, 2100
Julian computus: April 18 in the Julian calendar, plus 14 days to reach the Gregorian calendar.
In 2100 the two Easters are 35 days apart: Orthodox Easter is five weeks after Western Easter. They last fell on the same day in 2099 (April 12). They next fall on the same day in 2102 (April 9).
Western · Mar 28
Orthodox · May 2
MarchAprilMayThe moving feasts of 2100
Western feasts, 2100
| Feast | Date | From Easter |
|---|---|---|
| Shrove Tuesday | Tuesday, February 9, 2100 | −47 days |
| Ash Wednesday | Wednesday, February 10, 2100 | −46 days |
| Palm Sunday | Sunday, March 21, 2100 | −7 days |
| Maundy Thursday | Thursday, March 25, 2100 | −3 days |
| Good Friday | Friday, March 26, 2100 | −2 days |
| Holy Saturday | Saturday, March 27, 2100 | −1 day |
| Easter Sunday | Sunday, March 28, 2100 | Easter Sunday |
| Easter Monday | Monday, March 29, 2100 | +1 day |
| Ascension Day | Thursday, May 6, 2100 | +39 days |
| Pentecost | Sunday, May 16, 2100 | +49 days |
Orthodox feasts, 2100
| Feast | Date | From Easter |
|---|---|---|
| Clean Monday | Monday, March 15, 2100 | −48 days |
| Palm Sunday | Sunday, April 25, 2100 | −7 days |
| Great and Holy Friday | Friday, April 30, 2100 | −2 days |
| Pascha (Easter Sunday) | Sunday, May 2, 2100 | Easter Sunday |
| Ascension | Thursday, June 10, 2100 | +39 days |
| Pentecost | Sunday, June 20, 2100 | +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 2100?
March 28 is date 7 of the 35 that Western Easter can take, March 22 to April 25: 6 days after the earliest possible date and 28 days before the latest. Of the 201 Easters from 1900 to 2100, 17 fall on an earlier date than this one and 179 fall on a later date. 4 other years in that span share the date: 1937, 1948, 2027, 2032. Before 2100, Western Easter last fell on March 28 in 2032; after 2100 it next does in 2179.
In the 2100s Western Easter ran from March 25 (2103) to April 21 (2109); 2100’s March 28 is the second-earliest of the ten. Across the twenty-first century (2001–2100) Western Easter falls on March 28 in 3 years, and the Western and Orthodox Easters share a Sunday in 31 years.
Orthodox Easter on May 2 is April 18 in the Julian calendar; 14 days carry it to the Gregorian calendar in 2100. From 1900 to 2100 Orthodox Easter falls on an earlier Gregorian date in 172 years and on a later one in 22 years; it falls on the same date in 1926, 1937, 1948, 2021, 2027, 2032.
The earliest and latest Easters from 1900 to 2100, with how often each date occurs, are on their own page.
The arithmetic for 2100
11Golden number: the year’s place in the 19-year cycle of the moon, (2100 mod 19) + 1.
19Gregorian epact: the age of the reckoned moon at the start of the year.
March 25Paschal full moon of the Gregorian reckoning, a Thursday. Easter is the Sunday after it.
April 29Paschal full moon of the Julian reckoning in Gregorian dates (Julian April 15), a Thursday.
The two algorithms, worked for 2100
- Western: the Anonymous Gregorian algorithm
a=10 b=21 c=0 d=5 e=1 f=1 g=7 h=4 i=0 k=0 l=2 m=0h + l − 7m + 114 = 120, and 120 ÷ 31 = 3 remainder 27: month 3, day 27 + 1. March 28- Orthodox: Meeus’s Julian algorithm
a=0 b=0 c=10 d=25 e=2d + e + 114 = 141, and 141 ÷ 31 = 4 remainder 17: Julian April 18. Plus 14 days: May 2
How the date of Easter is calculated explains each letter. The dates on this page agree with the 5ko.free.fr tables (Western and Orthodox), each read September 28, 2026.