The Mexican New Year or Aztec New Year (Yancuic Xīhuitl) is the celebration of the New Year according to the Aztec calendar. The date on which the feast falls in the Gregorian calendar depends on the version of the calendar used, but it is generally considered to occur at sunrise on the 12th. March.
The holiday is observed in some Nahua communities in Mexico. To celebrate, ocote (pitch-pin) candles are lit on New Year's Eve, along with fireworks, drumming and singing. Some of the most important events occur in Huauchinango, Naupan, Mexico City, Zongolica and Xicotepec.
The most recent and accepted version has been proposed by Professor Rafael Tena (INAH), based on the studies of Durán, Sahagún and Alfonso Caso (UNAM). Its correlation confirms that the first day of the Mexican year was the 13 February according to the old Julian calendar or February 23 according to the current Gregorian calendar. Using the same count, Huitzilopochtli's date of birth, the end of the year and a cycle or "Tie of the Years", and the New Fire Ceremony, day sign "1 Tecpatl" of the year “2 Acatl,” corresponding to the date of February 22.
This 365-day calendar corresponded to the solar year, was divided into 18 'months' of 20 days each, plus 5 'unnamed' days at the end of the year. Also, there are codices that show the existence of the leap year.
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