The Intercalary Days, which run from the evening of 25 February until sunset on 1 March, serve as a spiritual preparation for a fast during the last month of the Baha'is calendar, which begins on March 2 and ends on March 20. The Baha'i calendar was initiated by the Bab, the Forerunner of the Faith's Prophet-Founder, Baha'u'llah, who later confirmed it. The calendar comprises 19 months of 19 days. The Ayyam-i-Ha (Intercalary Days) festival falls on the four days (five in a leap year) needed to balance out the solar year of 365 days. The time of this festival is also known as "Intercalary Days". Of this period Baha'u'llah writes: "It behoveth the people of Baha, throughout these days, to provide good cheer for themselves, their kindred and, beyond them, the poor and needy, and with joy and exultation to hail and glorify their Lord, to sing His praise and magnify His Name." To read more about The Intercalary Days visit the external link