Legal community vacations primarily based on the Iranian solar calendar incorporate the cultural celebrations of Nowruz (Farvardin 1-4 21-24 March) and Sizdebedar (Farvardin thirteen 2 April), and the political gatherings of Islamic Republic Day (Farvardin twelve 1 April), the demise of Ruhollah Khomeini (Khordad fourteen 4 June), the Khordad fifteen function (Khordad 15 5 June), the anniversary of the 1979 Revolution (Bahman 22 ten February),.