Perpetual Easter Calculator: Julian/Gregorian Easter Sunday and Jewish Passover

Coincidences of Dionysian Easter Sunday with Gregorian Easter Sunday

With the Easter/Passover calculator one can easily verify that Dionysian Easter Sunday and Gregorian Easter Sunday are always separated by a 7-day multiple (as they should, of course). At the moment, Dionysian Easter Sunday always follows Gregorian Easter Sunday after either 0, 7, 28 or 35 days (i.e. 0, 1, 4 or 5 weeks).

However, as time passes the offset between the Dionysian and the Gregorian Easter dates will continue to grow and the differences between Dionysian and Gregorian Easter Sunday will gradually progress to larger 7-day multiples.

The following table lists the possible Easter Sunday differences as the centuries roll on:

**Dionysian-Gregorian Easter Sunday differences from 1583 to 10194 AD**
Interval (AD)	Easter Sunday difference (weeks)	Interval (AD)	Easter Sunday difference (weeks)
1583 – 2092	0, 1, 4, 5	6396 – 6483	2, 3, 7
2093 – 2436	0, 1, 5	6484 – 6807	3, 7
2437 – 2698	0, 1, 5, 6	6808 – 6893	3, 7, 8
2699 – 2724	1, 5, 6	6894 – 7302	7, 8
2725 – 4294	1, 2, 5, 6	7303 – 7340	7, 8, 12
4295 – 4608	1, 2, 6	7341 – 8312	7, 8, 11, 12
4609 – 4860	1, 2, 6, 7	8313 – 8594	7, 8, 11, 12, 13
4861 – 4994	2, 6, 7	8595 – 8600	8, 11, 12, 13
4995 – 6395	2, 3, 6, 7	8601 – 10194	8, 9, 11, 12, 13

Up to the year 2698, the difference can every now and then become zero and then Dionysian and Gregorian Easter Sunday will be celebrated simultaneously (although on different days in the respective calendars).

From 1583 to 1699

**1583 to 1699 (Gregorian – Julian calendar offset = 10 days)**
Year	Julian Easter Sunday	Gregorian Easter Sunday	Year	Julian Easter Sunday	Gregorian Easter Sunday
1583	31 March	10 April	1642	10 April	20 April
1585	11 April	21 April	1645	6 April	16 April
1588	7 April	17 April	1648	2 April	12 April
1591	4 April	14 April	1649	25 March	4 April
1594	31 March	10 April	1651	30 March	9 April
1597	27 March	6 April	1654	26 March	5 April
1600	23 March	2 April	1656	6 April	16 April
1601	12 April	22 April	1658	11 April	21 April
1604	8 April	18 April	1659	3 April	13 April
1605	31 March	10 April	1662	30 March	9 April
1607	5 April	15 April	1665	26 March	5 April
1608	27 March	6 April	1666	15 April	25 April
1611	24 March	3 April	1668	22 March	1 April
1612	12 April	22 April	1669	11 April	21 April
1615	9 April	19 April	1672	7 April	17 April
1618	5 April	15 April	1675	4 April	14 April
1621	1 April	11 April	1676	26 March	5 April
1624	28 March	7 April	1678	31 March	10 April
1627	25 March	4 April	1680	11 April	21 April
1628	13 April	23 April	1683	8 April	18 April
1629	5 April	15 April	1686	4 April	14 April
1631	10 April	20 April	1689	31 March	10 April
1632	1 April	11 April	1692	27 March	6 April
1634	6 April	16 April	1695	24 March	3 April
1635	29 March	8 April	1696	12 April	22 April
1638	25 March	4 April	1699	9 April	19 April
1639	14 April	24 April

From 1700 to 1799

**1700 to 1799 (Gregorian – Julian calendar offset = 11 days)**
Year	Julian Easter Sunday	Gregorian Easter Sunday	Year	Julian Easter Sunday	Gregorian Easter Sunday
1700	31 March	11 April	1746	30 March	10 April
1702	5 April	16 April	1749	26 March	6 April
1703	28 March	8 April	1753	11 April	22 April
1706	24 March	4 April	1754	3 April	14 April
1707	13 April	24 April	1757	30 March	10 April
1710	9 April	20 April	1760	26 March	6 April
1713	5 April	16 April	1763	23 March	3 April
1716	1 April	12 April	1764	11 April	22 April
1719	29 March	9 April	1767	8 April	19 April
1722	25 March	5 April	1770	4 April	15 April
1724	5 April	16 April	1773	31 March	11 April
1726	10 April	21 April	1778	8 April	19 April
1727	2 April	13 April	1781	4 April	15 April
1729	6 April	17 April	1784	31 March	11 April
1730	29 March	9 April	1787	28 March	8 April
1733	25 March	5 April	1790	24 March	4 April
1734	14 April	25 April	1791	13 April	24 April
1737	10 April	21 April	1794	9 April	20 April
1740	6 April	17 April	1797	5 April	16 April
1743	3 April	14 April	1798	28 March	8 April
1744	25 March	5 April

From 1800 to 1899

**1800 to 1899 (Gregorian – Julian calendar offset = 12 days)**
Year	Julian Easter Sunday	Gregorian Easter Sunday	Year	Julian Easter Sunday	Gregorian Easter Sunday
1801	March 24	April 5	1852	March 30	April 11
1808	April 5	April 17	1855	March 27	April 8
1811	April 2	April 14	1858	March 23	April 4
1814	March 29	April 10	1859	April 12	April 24
1817	March 25	April 6	1862	April 8	April 20
1821	April 10	April 22	1865	April 4	April 16
1824	April 6	April 18	1868	March 31	April 12
1827	April 3	April 15	1871	March 28	April 9
1828	March 25	April 6	1876	April 4	April 16
1832	April 10	April 22	1879	April 1	April 13
1835	April 7	April 19	1882	March 28	April 9
1838	April 3	April 15	1885	March 24	April 5
1841	March 30	April 11	1886	April 13	April 25
1844	March 26	April 7	1889	April 9	April 21
1847	March 23	April 4	1892	April 5	April 17
1848	April 11	April 23	1895	April 2	April 14
1851	April 8	April 20	1896	March 24	April 5

From 1900 to 2099

**1900 to 2099 (Gregorian – Julian calendar offset = 13 days)**
Year	Julian Easter Sunday	Gregorian Easter Sunday	Year	Julian Easter Sunday	Gregorian Easter Sunday
1906	April 2	April 15	2010	March 22	April 4
1909	March 29	April 11	2011	April 11	April 24
1912	March 25	April 7	2014	April 7	April 20
1915	March 22	April 4	2017	April 3	April 16
1916	April 10	April 23	2025	April 7	April 20
1919	April 7	April 20	2028	April 3	April 16
1922	April 3	April 16	2031	March 31	April 13
1930	April 7	April 20	2034	March 27	April 9
1933	April 3	April 16	2037	March 23	April 5
1936	March 30	April 12	2038	April 12	April 25
1939	March 27	April 9	2041	April 8	April 21
1942	March 23	April 5	2045	March 27	April 9
1943	April 12	April 25	2048	March 23	April 5
1946	April 8	April 21	2052	April 8	April 21
1950	March 27	April 9	2055	April 5	April 18
1953	March 23	April 5	2058	April 1	April 14
1957	April 8	April 21	2061	March 28	April 10
1960	April 4	April 17	2069	April 1	April 14
1963	April 1	April 14	2071	April 6	April 19
1966	March 28	April 10	2072	March 28	April 10
1974	April 1	April 14	2075	March 25	April 7
1977	March 28	April 10	2079	April 10	April 23
1980	24 March	6 April	2082	6 April	19 April
1984	9 April	22 April	2085	2 April	15 April
1987	6 April	19 April	2091	26 March	8 April
1990	2 April	15 April	2095	11 April	24 April
2001	2 April	15 April	2096	2 April	15 April
2004	29 March	11 April	2099	30 March	12 April
2007	26 March	8 April

From 2100 to 2199

**2100 to 2199 (Gregorian – Julian calendar offset = 14 days)**
Year	Julian Easter Sunday	Gregorian Easter Sunday	Year	Julian Easter Sunday	Gregorian Easter Sunday
2102	26 March	9 April	2156	28 March	11 April
2105	22 March	5 April	2159	25 March	8 April
2109	7 April	21 April	2163	10 April	24 April
2112	3 April	17 April	2166	6 April	20 April
2115	31 March	14 April	2177	6 April	20 April
2126	31 March	14 April	2180	2 April	16 April
2129	27 March	10 April	2183	30 March	13 April
2132	23 March	6 April	2186	26 March	9 April
2136	8 April	22 April	2190	11 April	25 April
2139	5 April	19 April	2197	26 March	9 April
2153	1 April	15 April

From 2200 to 2299

**2200 to 2299 (Gregorian – Julian calendar offset = 15 days)**
Year	Julian Easter Sunday	Gregorian Easter Sunday	Year	Julian Easter Sunday	Gregorian Easter Sunday
2200	22 March	6 April	2251	29 March	13 April
2204	7 April	22 April	2254	25 March	9 April
2207	4 April	19 April	2258	10 April	25 April
2210	31 March	15 April	2261	6 April	21 April
2221	31 March	15 April	2272	6 April	21 April
2224	27 March	11 April	2275	3 April	18 April
2227	24 March	8 April	2278	30 March	14 April
2231	9 April	24 April	2281	26 March	10 April
2234	5 April	20 April	2292	26 March	10 April
2248	1 April	16 April	2295	23 March	7 April

From 2300 to 2499

**2300 to 2499 (Gregorian – Julian calendar offset = 16 days)**
Year	Julian Easter Sunday	Gregorian Easter Sunday	Year	Julian Easter Sunday	Gregorian Easter Sunday
2302	4 April	20 April	2383	8 April	24 April
2305	31 March	16 April	2390	23 March	8 April
2316	31 March	16 April	2397	4 April	20 April
2322	24 March	9 April	2400	31 March	16 April
2326	9 April	25 April	2403	28 March	13 April
2329	5 April	21 April	2424	5 April	21 April
2346	29 March	14 April	2427	2 April	18 April
2349	25 March	10 April	2444	25 March	10 April
2356	6 April	22 April	2447	22 March	7 April
2359	3 April	19 April	2454	3 April	19 April
2370	3 April	19 April	2468	30 March	15 April
2373	30 March	15 April	2474	23 March	8 April
2376	26 March	11 April	2478	8 April	24 April
2379	23 March	8 April	2498	28 March	13 April

From 2500 to 2599

**2500 to 2599 (Gregorian – Julian calendar offset = 17 days)**
Year	Julian Easter Sunday	Gregorian Easter Sunday	Year	Julian Easter Sunday	Gregorian Easter Sunday
2522	2 April	19 April	2569	23 March	9 April
2542	22 March	8 April	2573	8 April	25 April
2549	3 April	20 April	2593	28 March	14 April

From 2600 to 2699

**2600 to 2699 (Gregorian – Julian calendar offset = 18 days)**
Year	Julian Easter Sunday	Gregorian Easter Sunday	Year	Julian Easter Sunday	Gregorian Easter Sunday
2603	6 April	24 April	2664	23 March	10 April
2617	2 April	20 April	2671	5 April	23 April
2623	26 March	13 April	2688	28 March	15 April
2637	22 March	9 April	2691	25 March	12 April
2644	3 April	21 April	2698	6 April	24 April
2647	31 March	18 April

After the year 2698 the offset between the Gregorian and the Julian calendars will have become so large that Gregorian Easter Sunday and Dionysian Easter Sunday can never fall on the same day again within the same calendar year.

According to the calculations of Franz Goldscheider, a new series of Dionysian/Gregorian Easter Sunday coincidences will commence in the year 44734 (Gregorian) when Gregorian Easter Sunday will fall on 25 March, which is equivalent with the Dionysian Easter Sunday of 25 April 44733 (Julian).