The culture of Bhutan is fully reflected in Thimphu in literature, religion, customs, and national dress code, the monastic practices of the monasteries, music, and dance, and in the media. Tshechu is an important festival when mask dances, popularly known as Cham dances, are performed in the courtyards of the Tashichho Dzong in Thimphu. It is a four-day festival held every year in September or October, on dates corresponding to the Bhutanese calendar.