The time of Islamic festivals is calculated according to local sightings of various phases of the moon and the dates given below are approximations which are subject to change each year.
The history of tea culture in Iran started at the end of the 15th century.
The alcoholic drinks market in Iran consist of only non-alcoholic beer, as the law bans alcohol for Muslim citizens. Non-Muslim citizens (namely Christian and Jewish citizens) are allowed to produce alcoholic beverages for their consumption. Non-Muslim citizens are also allowed to bring alcohol into the country. However, despite complete prohibition for Muslim citizens, there is still widespread alcohol use across Iran.