Xihuitl

It is a solar calendar consists of 18 months of 20 days each. At the end of these months take place five days useless called nemonteni where there is fasting and abstinence.

The week was composed of five days and the year of 365 days. Each month linked with a different activity and was dedicated to a different god.

To solve the mismatch of time the Aztecs established leap years which consisted of the addition to the schedule of one day's duration double.

The Aztecs this calendar divided into 5 periods of 73 days to match the seasons, which received the names of:

·  Cocij cogaa: while water and wind. Their representation was a crocodile.

·  Col Cocij lapa: harvest time. Venía represented by corn.

·  Pye Cocij chij: time for the holidays whose representation was an eagle or a warrior.

·  Pye Cocij corgaa: start of the calendar. It was the time of drought.

·  Cocij yoocho: Time of diseases represented by a tiger.