Baha'I Feast Calendar 2025. Based on the solar year, the baha’i year is composed of 19 months of 19 days each, which equals 361 days. Each baha’i community holds a nineteen day feast on the first day of each baha’i month.
The bahá’í holy days are set and move according to a solar calendar. The badí’ calendar is a solar calendar consisting of 19 months of 19 days each (361 days), with the addition of either four or five “intercalary days” to adjust the calendar to the.