How is leap day accounted for in the 13 Moon calendar?
First of all it is important to understand that the concept of Leap Day is a function of the Gregorian calendar. This was created to account for the orbit of earth around the sun which is slightly more than 365.225 days. There are many ways to reconcile the accumulation of this extra day every four years. Keep in mind that different calendar systems have handled this in different ways. Creating a leap day, such as in the Gregorian calendar is one way to handle this. This is the one solution that has been programmed into our sense of time and we are deeply conditioned by it. In the 13 Moon calendar, this accumulated – intercalary – day every four years is observed as 0.0.Hunab Ku – and always occurs between the 22nd and 23rd day of the Galactic Moon (on what would be Gregorian February 29). This day is celebrated as an especially spiritual day since Hunab Ku refers both to the center of the Galaxy and to the Supreme Creator, One Giver of Movement and Measure.