Aztec New Year is celebrated on March 12, 2021. The Aztec New Year is the celebration of the new year according to the Aztec calendar. The date on which the holiday falls in the Gregorian calendar depends on the version of the calendar used, but it is generally considered to occur at sunrise on March 12. The holiday is observed in some Nahua communities in Mexico. To celebrate, ocote (pitch-pine) candles are lit on the eve of the new year, along with fireworks, drumming, and singing. Some of the most important events occur in Huauchinango, Naupan, Mexico City, Zongolica, and Xicotepec.