The Bahá'í Faith has eleven holy days, which are important anniversaries in the history of the religion. On nine of these holy days, work is suspended. There is no fixed format for any of the holy days, and Bahá’í communities organize their own commemorative meetings.
All but two of the holy days are scheduled annually on fixed dates in the Badí‘ Calendar. The Twin Holy Birthdays are scheduled annually according to a lunar calculation.
Besides the eleven holy days, Bahá'ís also celebrate Ayyám-i-Há, a period of several extra days in the calendar (followed by the Nineteen Day Fast).
Annually on Bahá 1. See Naw-Rúz
Annually in October or November. The The Báb was born two years after Bahá'u'lláh, on the first of the Twin Holy Birthdays.
Annually on ‘Aẓamat 8. See Declaration of the Bab to Mullá Husayn
Annually on Raḥmat 17. See Martyrdom of the Báb
Annually in October or November. Bahá'u'lláh was born on the second of the Twin Holy Birthdays. See also: Birth of Baha'u'llah.
The Festival of Ridván, a twelve-day festival that commemorates Bahá'u'lláh's announcement to be the Manifestation of God, is the most holy Bahá'í festival to which Bahá'u'lláh referred as the "Most Great Festival." The first, ninth and twelfth days of the festival are celebrated as holy days.
Annually on Jalál 13, Jamál 2 and Jamál 5.
See Festival of Ridván.