Carnival in Brazil for the year 2027 will officially take place on Tuesday, February 9, and will be preceded by festivities that commence with the samba parades in São Paulo and Rio de Janeiro, as well as numerous street parties throughout the country. The celebrations traditionally vary each year as they follow the lunar calendar and align with Catholic traditions, which dictate that the event does not have a fixed date. Each year, the Carnival festivities start on a different day, influenced by the timing of Easter, which is the basis for calculating the Carnival date. The calculation of when Carnival occurs each year is closely linked to the Easter date, with the process starting from the equinox, an event that occurs biannually when day and night are approximately equal length. The first equinox of the year takes place around March 20, marking the onset of autumn in the Southern Hemisphere and spring in the Northern Hemisphere. The complexities of determining the exact date for Carnival reflect a blend of cultural and seasonal influences, making it a unique feature of Brazilian culture. As Carnival approaches, preparations intensify across Brazil, with various cities planning massive celebrations and events, highlighting the importance of this festival not only as a cultural event but also as a significant economic driver for tourism in the country. The excitement surrounding Carnival also serves as a reminder of Brazil's rich traditions and the communal spirit that underpins this festive occasion, drawing millions of participants and spectators from around the globe.