A simple calculator that can calculate Church holidays and fasts by month. You can easily find out what day will come this or that Christian holiday or fast. Non-movable dates are displayed immediately, for movable dates (depending on Easter) is calculated for the selected year.
Note: all dates are in the Julian calendar (old style).
The Church year begins in September and ends in August (Julian calendar).
September 1. The Church new year.
September 8. The Birth of the Blessed Virgin Mary.
September 14. The Feast of the Exaltation of the Holy Cross, one-day fast.
October 1. The Protecting Veil of the Theotokos.
November 15. Beginning of Christmas fast.
November 21. The Presentation of the Blessed Virgin Mary.
December 24. Last day of Christmas fast (Christmas eve), fast to the first star.
December 25. Christmas. The beginning of Yuletide (a solid week without a fast).
January 1. The Circumcision of the Lord and Commemoration of St. Basil the Great.
January 4. Last day of Yuletide.
January 5. Baptismal eve (the eve of Epiphany), one-day fast.
January 6. The Baptism of the Lord (Holy Epiphany).
February 2. The Presentation of Christ (if the Presentation falls on the monday of the first week of Lent, the festive worship is shifted to February 1).
March 25. Annunciation of the Blessed Virgin Mary.
June 24. Nativity of St. John the Baptist.
June 29. The Feast of Saints Peter and Paul.
August 1. The beginning of the Assumption fast.
August 6. Transfiguration of the Lord.
August 14. Last day of the Assumption fast.
August 15. The Assumption of the Blessed Virgin Mary.
August 29. The Beheading of St. John the Baptist, one-day fast.
The calculation range: from 988 to 4068.
In 988 NE (year 6496 of the Byzantine era) there was a Baptism of Rus, the adoption of Christianity as the state religion of the Russian state. 4068 NE (year 9576 of the Byzantine era) is the last year of 18 Indiction. More details about this is written in the my book «Biblical Chronology».