aztec-calendar

https://calendariomexica.com/aztec-calendar

This planner's purpose is to correlate the European with the Mexica calendars, so that you can ascertain what Mexica day any given day of the European calendar might be. This planner places primacy upon the indigenous calendar of our ancestors, and not the European calendar. It is therefore divided into the eighteen metztli (often called twentynas in Spanish) or “months” of the Xiuhpohualli (the solar year), and not the 12 months of a European year. In our indigenous calendar, a sacred count of 260 days called the Tonalpohualli runs concurrently within the larger Xiuhpohualli of 365 days (eighteen twenty day metztli plus a period of five “dead” days at the end). Therefore each day is marked with the European date, the day within the Tonalpohualli (the sacred cycle of 260 days), and the day within the Xiuhpohualli (the solar calendar of 365 days). This calendar begins in October and not in January because a new Xiuhpohualli begins in that Western month.