May 2031
Russian Orthodox Church (Old Calendar)
- 1 Thursday St John, disciple of St Gregory the Decapolite 18 April (Old Style)
- 2 Friday St John of the Ancient Caves 19 April (Old Style) · fast day
- 3 Saturday St Theodore Trichinas 20 April (Old Style)
- 4 Sunday Hieromartyr Januarius and those with him 21 April (Old Style)
- 5 Monday St Theodore the Sykeote 22 April (Old Style)
- 6 Tuesday Holy Great-martyr George the Trophy-bearer 23 April (Old Style)
- 7 Wednesday Martyr Sabbas Stratelates 24 April (Old Style) · fast day
- 8 Thursday Apostle and Evangelist Mark 25 April (Old Style)
- 9 Friday Hieromartyr Basil, Bishop of Amasea; St Stephen, Bishop of Great Perm 26 April (Old Style) · fast day
- 10 Saturday Hieromartyr Simeon, kinsman of the Lord 27 April (Old Style)
- 11 Sunday Apostles Jason and Sosipater of the Seventy 28 April (Old Style)
- 12 Monday The Nine Martyrs of Cyzicus 29 April (Old Style)
- 13 Tuesday Apostle James son of Zebedee; St Ignatius Brianchaninov 30 April (Old Style)
- 14 Wednesday Prophet Jeremiah; St Paphnutius of Borovsk 1 May (Old Style) · fast day
- 15 Thursday St Athanasius the Great; Translation of the relics of Sts Boris and Gleb 2 May (Old Style)
- 16 Friday Martyrs Timothy and Maura; St Theodosius of the Kiev Caves 3 May (Old Style) · fast day
- 17 Saturday Martyr Pelagia of Tarsus 4 May (Old Style)
- 18 Sunday Great-martyr Irene 5 May (Old Style)
- 19 Monday Righteous Job the Long-suffering 6 May (Old Style)
- 20 Tuesday Apparition of the Cross in the sky over Jerusalem (351); Martyr Acacius 7 May (Old Style)
- 21 Wednesday Apostle and Evangelist John the Theologian; St Arsenius the Great 8 May (Old Style) · fast day
- 22 Thursday Ascension of the Lord 9 May (Old Style)
- 23 Friday Apostle Simon the Zealot 10 May (Old Style) · fast day
- 24 Saturday Holy Equal-to-the-Apostles Methodius and Cyril, Teachers of the Slavs 11 May (Old Style)
- 25 Sunday Sts Epiphanius of Cyprus and Germanus, Patriarch of Constantinople 12 May (Old Style)
- 26 Monday Martyr Glyceria 13 May (Old Style)
- 27 Tuesday Martyr Isidore of Chios; Blessed Isidore the Fool-for-Christ of Rostov 14 May (Old Style)
- 28 Wednesday St Pachomius the Great; Right-believing Tsarevich Dimitry of Uglich 15 May (Old Style) · fast day
- 29 Thursday St Theodore the Sanctified; St Ephrem of Perekom 16 May (Old Style)
- 30 Friday Apostle Andronicus of the Seventy and St Junia 17 May (Old Style) · fast day
- 31 Saturday Trinity Memorial Saturday 18 May (Old Style)
2031
Fasts this year
- Nativity FastNovember 28 – January 6
- Cheesefare WeekFebruary 17 – February 23
- Great LentFebruary 24 – April 4
- Lazarus Saturday and Palm SundayApril 5 – April 6
- Holy WeekApril 7 – April 12
- Apostles' FastJune 9 – July 11
- Dormition FastAugust 14 – August 27
- Nativity FastNovember 28 – January 6
Food rules are reference church information. Agree your personal measure of fasting with a priest; consult a doctor if you are ill.