When Is Eastern Orthodox Easter In 2025. The easter celebration is typically split between the orthodox and catholic churches because they follow different calendars. Orthodox easter, which is calculated using the phases of the moon and the equinox, is a sacred season and the most significant celebration of the eastern christian churches or orthodox churches — it will be celebrated on april 20 this year.

Orthodox easter day, which takes place on the sunday after the first full moon after passover, is a sacred season and the most significant celebration of the eastern christian churches or orthodox churches — it will be celebrated on april 16 this year. Orthodox calendar by months for 2025.