As we know that the every countries are designed own holiday days as per condition, which depend on special religious and memorable day of the state or nation. As we know that during the holidays all the schools, colleges, universities, business, banks, and government offices are close, it is not necessary that the all holidays are announced in all over world in same date, holidays are different from all the countries. For example: USA government announced the holiday 4th July for celebrate the independence day but if we talking about the China so, Pakistani Government announced holidays in 1st October of every year for celebrate the independence day, In this page you can just now about the all holidays of Iran
holidays . Here you can check the iran holidays and observances.