Q&A Home > F > Fasts How long are the Apostles’ Fast, the Holy Great Fast, and Jonah's Fast (in days)? The Apostles’ Fast varies from one year to another because it starts on the second day of Pentecost (a variable day) and ends on July 12th (the Feast of the Apostles).
The Holy Great Fast is 55 days.
Jonah's Fast is 3 days.
| ![](images/blank.gif) |