Aztec and Maya Calendar
In the tonalpohualli, the sacred Aztec calendar, Sunday September 23, 2063 is:
Xihuitl:
solar year
12 - Acatl (reed)
Long Count:
Mayan calendar
13.2.11.8.18
Xiuhpohualli:
365-day calendar
5 - Nemontemi (-)
(Correlation: Alfonso Caso [adjust])
The significance of this day
Aztec facts
The Aztecs did not use a leap year correction but they knew the length of a solar year is neither 365 nor 365.25 days. Presumably they kept some count of days to register astronomical events but no evidence of an Aztec Long Count exists.
This is the last of the five unlucky days (nemontemi) at the end of a year (xihuitl). It is better not to carry out any activity during these unfortunate and useless days.
Day Tecpatl (Stone Knife) is governed by Chalchihuihtotolin, the Jewelled Fowl, as its provider of tonalli (Shadow Soul) life energy. Tecpatl is a day of grave ordeals, a day of trials and tribulations. It is a good day to test one's character, a bad day to rest on one's past accomplishments or reputation. Tecpatl warns that the mind, the spirit, must be sharpened like the glass blade which cuts to the marrow of truth
The thirteen day period (trecena) that starts with day 1-Cuauhtli (Eagle) is ruled by Xochiquetzal. This trecena signifies a time of inspired play: regardless of the sport, this is the time of mastery. All of one's practice and preparation culminates now in an unparalleled conjunction of luck, skill and timing. These are 13 days when gambling on happiness, both your own and others', pays off. These are good days for taking risks; bad days for playing it safe.