Aztec Calendar

In the tonalpohualli, the sacred Aztec calendar, today

Xihuitl:

solar year

Trecena:

13-day period

Tonalli:

day

11-Tochtli (rabbit)

1 - Cuetzpalin (lizard)

11 - Ocelotl (jaguar)

Yoaltecuhtli:

Lord of the Night

Xiuhpohualli:

365-day calendar

Long Count:

(Maya calendar)

Xiuhtecuhtli

6 - Etzcualiztli (VII)

12.19.17.1.14

About the Aztec Calendar

The date as presented above shows the name of the year (the xihuitl in Nahuatl, the language of the Mexica or Aztecs), the name of the 13-day 'week' (trecena in Spanish) and the name and number of the day (tonalli) in the tonalpohualli, 260-day ritual daycount. Further, the Lord of the Night, the day in the 365-day calendar (the xiuhpohualli) and the (Mayan) Long Count are shown.
To understand the workings of the calendar and its significance for Aztec culture, see Introduction to the Aztec Calendar.

To find out the Aztec equivalent of any given date, go to the Date Calculator. Enter your birthdate and discover your Aztec name!
You can even change how the Aztec date on this site is correlated to our (Gregorian) date. To do so, go to Preferences. Experts can even use any correlation they like.