DATES OF EASTER
| YEAR | GREGORIAN | JULIAN | DIFFERENCE |
| 2008 | March 23 | April 27 | 5 weeks |
| 2009 | April 12 | April 19 | 1 Week |
| 2010 | April 4 | April 4 | ———- |
| 2011 | April 24 | April 24 | ———- |
| 2012 | April 8 | April 15 | 1 Week |
| 2013 | March 31 | May 5 | 5 Weeks |
| 2014 | April 20 | April 20 | ———- |
| 2015 | April 5 | April 12 | 1 Week |
| 2016 | March 27 | May 1 | 5 Weeks |
| 2017 | April 16 | April 16 | ———- |
| 2018 | April 1 | April 8 | 1 Week |
| 2019 | April 21 | April 28 | 1 Week |
| 2020 | April 12 | April 19 | 1 Week |
| 2021 | April 4 | May 2 | 4 Weeks |
NOTE: In 2016 the Feast of Annunciation falls on Good Friday. The next time that will happen will be in the 22nd century. This is on the Gregorian Calendar.
If my calculations are correct the Feast of the Annunciation will fall on Good Friday on the Julian Calendar twice in this century, in 2034 and 2045.
In 2021 the difference between the two Easters is 4 weeks. This is a rarity that happens maybe once in a century.