Western Easter
Sunday, April 4, 1915
Gregorian computus. Golden number 16, epact 14, Paschal full moon March 30.
Easter 1915
Easter 1915: Sunday, April 4
In 1915 Easter falls on Sunday, April 4, 1915 for Western and Orthodox churches alike: the Gregorian and the Julian reckoning arrive at the same Sunday.
Orthodox Easter
Sunday, April 4, 1915
Julian computus: March 22 in the Julian calendar, plus 13 days to reach the Gregorian calendar.
Both Easters fall on April 4 in 1915. They last fell on the same day in 1912 (April 7). They next fall on the same day in 1916 (April 23).
Western · Apr 4
Orthodox · Apr 4
MarchAprilMayThe moving feasts of 1915
Western feasts, 1915
| Feast | Date | From Easter |
|---|---|---|
| Shrove Tuesday | Tuesday, February 16, 1915 | −47 days |
| Ash Wednesday | Wednesday, February 17, 1915 | −46 days |
| Palm Sunday | Sunday, March 28, 1915 | −7 days |
| Maundy Thursday | Thursday, April 1, 1915 | −3 days |
| Good Friday | Friday, April 2, 1915 | −2 days |
| Holy Saturday | Saturday, April 3, 1915 | −1 day |
| Easter Sunday | Sunday, April 4, 1915 | Easter Sunday |
| Easter Monday | Monday, April 5, 1915 | +1 day |
| Ascension Day | Thursday, May 13, 1915 | +39 days |
| Pentecost | Sunday, May 23, 1915 | +49 days |
Orthodox feasts, 1915
| Feast | Date | From Easter |
|---|---|---|
| Clean Monday | Monday, February 15, 1915 | −48 days |
| Palm Sunday | Sunday, March 28, 1915 | −7 days |
| Great and Holy Friday | Friday, April 2, 1915 | −2 days |
| Pascha (Easter Sunday) | Sunday, April 4, 1915 | Easter Sunday |
| Ascension | Thursday, May 13, 1915 | +39 days |
| Pentecost | Sunday, May 23, 1915 | +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 1915?
April 4 is date 14 of the 35 that Western Easter can take, March 22 to April 25: 13 days after the earliest possible date and 21 days before the latest. Of the 201 Easters from 1900 to 2100, 63 fall on an earlier date than this one and 130 fall on a later date. 7 other years in that span share the date: 1920, 1926, 1999, 2010, 2021, 2083, 2094. Before 1915, Western Easter last fell on April 4 in 1858; after 1915 it next does in 1920.
In the 1910s Western Easter ran from March 23 (1913) to April 23 (1916); 1915’s April 4 is the fourth-earliest of the ten. Across the twentieth century (1901–2000) Western Easter falls on April 4 in 4 years, and the Western and Orthodox Easters share a Sunday in 26 years.
Orthodox Easter on April 4 is March 22 in the Julian calendar; 13 days carry it to the Gregorian calendar in 1915. From 1900 to 2100 Orthodox Easter falls on an earlier Gregorian date in 0 years and on a later one in 199 years; it falls on the same date in 2010.
The earliest and latest Easters from 1900 to 2100, with how often each date occurs, are on their own page.
The arithmetic for 1915
16Golden number: the year’s place in the 19-year cycle of the moon, (1915 mod 19) + 1.
14Gregorian epact: the age of the reckoned moon at the start of the year.
March 30Paschal full moon of the Gregorian reckoning, a Tuesday. Easter is the Sunday after it.
April 3Paschal full moon of the Julian reckoning in Gregorian dates (Julian March 21), a Saturday.
The two algorithms, worked for 1915
- Western: the Anonymous Gregorian algorithm
a=15 b=19 c=15 d=4 e=3 f=1 g=6 h=9 i=3 k=3 l=4 m=0h + l − 7m + 114 = 127, and 127 ÷ 31 = 4 remainder 3: month 4, day 3 + 1. April 4- Orthodox: Meeus’s Julian algorithm
a=3 b=4 c=15 d=0 e=0d + e + 114 = 114, and 114 ÷ 31 = 3 remainder 21: Julian March 22. Plus 13 days: April 4
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.