The 43rd Anniversary of the Victory of the 1979 Islamic Revolution Islamic Revolution Day is a public holiday in Iran observed on the 22nd day of the Persian month of Bhaman(February 11th). It is the National Day of Iran and marks the Islamic Revolution of 1979. The 10-day period from the return of Imam Khomeini until the revolution’s victory is celebrated annually in Iran and is known as the Ten-Day Fajr (Dawn). The Embassy of the Islamic Republic of Iran extends its congratulations to the Iranian people on this auspicious occasion commemorating the victory of the Islamic Revolution in Iran.