Carnival is 47 days before Easter, which is the first Sunday after the full moon at the vernal equinox. Due to this factor, the date of carnival is uncertain every year, usually in the middle or late February. The carnival began three days before the carnival day (Saturday) and was held every night for three consecutive days.

Carnival in Rio de Janeiro is the biggest festival in Brazil, but the most famous is the carnival in Rio de Janeiro. The carnival in this city is the best in the world, with a large number of actors, gorgeous costumes, long duration and spectacular scenes.

The samba competition is a major event of the carnival in Rio de Janeiro. The stadium covers an area of 85,000 square meters, with stands on both sides and the passage of samba dance team in the middle. During the carnival every year, there are five samba dances in this stadium, and the activities on the third and fourth days are the most exciting. In these two days, the top 14 samba schools in the city will compete here to decide the annual ranking, and the top five will have another performance.