aztec calendar

Aztec Calendar
How it works
Gods and deities
Frequently Asked

Aztec and Maya Calendar

Did you know?

Tenochtitlan, the Aztec capital was captured by Hernán Cortés on August 13, 1521 (day 1-Coatl). This date, as recorded by Fray Bernardino de Sahagún, provides an anchor for the correlation of the calendar.

Month: Day: Year:   

In the tonalpohualli, the sacred Aztec calendar, this day (Friday, May 29, 2015) is:




13-day period


solar year
Atl (water)Cipactli (crocodile)Acatl (reed)
9 - Atl (water)1 - Cipactli (crocodile)3 - Acatl (reed)


Lord of the Night


365-day calendar

Long Count:

(Mayan calendar)
Tlaloc16 - Ochpaniztli (XI)

(Correlation: Alfonso Caso - Nicholson's veintena alignment [adjust] )

The significance of this day

Day Atl (Water) is governed by Xiuhtecuhtli, God of Fire, as its provider of tonalli (Shadow Soul) life energy. Atl is a day for purification by subjecting oneself to the ordeal of conflict. It is a good day for battle, a bad day for rest. Water brings out the scorpion, who must sting its enemies or else sting itself. Atl is the day of the holy war, which is always a battle with one's own enemies within.

The thirteen day period (trecena) that starts with day 1-Cipactli (Crocodile) is ruled by Tonacatecuhtli, Lord of Nurturance, the primordial god of creation and fertility. Cipactli is god of the land, the great earth monster, floating on the sea of stars. This is the first trecena of the sacred year. The 13 days of this trecena are governed by the primordial urge to create order out of chaos. The three means by which the Old Ones established order are still our most important treasures: speech, agriculture, and the family. The lineage of thought runs from seed to fruit to seed: these are good days to participate in the community; bad days for solitude.

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