Aztec Calendar Calculator
The Aztec (Mexica) divinatory calendar, the Tonalpohualli or “count of days”, combines 13 numbers with 20 day signs over 260 days. Each person's birth day, their tonalli, was believed to shape their character and destiny, and each sign and each 13-day trecena had a patron deity, as recorded in the Florentine Codex and the Codex Borbonicus.
The 20 day signs
| # | Nahuatl | Meaning | Patron | Direction |
|---|---|---|---|---|
| 1 | Cipactli | crocodile (earth monster) | Tonacatecuhtli | east (red) |
| 2 | Ehecatl | wind | Quetzalcoatl | north (black) |
| 3 | Calli | house | Tepeyollotl | west (white) |
| 4 | Cuetzpalin | lizard | Huehuecoyotl | south (blue) |
| 5 | Coatl | serpent | Chalchiuhtlicue | east (red) |
| 6 | Miquiztli | death and transition | Tecciztecatl | north (black) |
| 7 | Mazatl | deer | Tlaloc | west (white) |
| 8 | Tochtli | rabbit | Mayahuel | south (blue) |
| 9 | Atl | water | Xiuhtecuhtli | east (red) |
| 10 | Itzcuintli | dog | Mictlantecuhtli | north (black) |
| 11 | Ozomatli | monkey | Xochipilli | west (white) |
| 12 | Malinalli | grass | Patecatl | south (blue) |
| 13 | Acatl | reed | Itztlacoliuhqui | east (red) |
| 14 | Ocelotl | jaguar | Tlazolteotl | north (black) |
| 15 | Cuauhtli | eagle | Xipe Totec | west (white) |
| 16 | Cozcacuauhtli | vulture | Itzpapalotl | south (blue) |
| 17 | Ollin | movement (earthquake) | Xolotl | east (red) |
| 18 | Tecpatl | flint knife | Chalchiuhtotolin | north (black) |
| 19 | Quiahuitl | rain | Chantico | west (white) |
| 20 | Xochitl | flower | Xochiquetzal | south (blue) |