The number of months in a year, appointed in the Book of God, is nineteen.The Bahá’í
year, in accordance with the Badí' calendar, consists of nineteen
months of nineteen days each, with the addition of certain intercalary days (four in an ordinary
year and five in a leap
year) between the eighteenth and nineteenth
months in order to adjust the calendar to the solar
year. The Báb
named the
months after certain attributes of
God. The Bahá’í New
Year, Naw-Rúz, is astronomically fixed, coinciding with the March equinox (see note
26).
For further details, including the names of the days of the week and the
months, see the section on the Bahá’í calendar in
The Bahá’í World, volume XVIII.