This calendar is part of an ongoing initiative by the Chimalli Institute of Mesoamerican Arts to make traditional Mesoamerican timekeeping accessible to the public. Readers who want a more detailed explanation of the calendar system, the monthly ceremonial practices of our ancestors, and the methods used to determine our correlation are encouraged to visit our website at mexikanewyear.com.

The central Mexican calendar functions as a living system designed to track the movement of the sun (Tonatiw). Just as importantly, it represents a core component of Indigenous spiritual life. Preserving traditional calendar knowledge is essential for maintaining our ceremonial practices, which depend on accurate timing and an understanding of the solar cycle. In an era when Indigenous religious freedoms still require active defense, keeping our timekeeping traditions alive is part of protecting our rights as Native people.

By providing users with the knowledge and tools needed not only to use but also to understand this system, we aim to support its continued preservation for future generations. The count used in this calendar is based on the research of Ruben Ochoa.