The Mayan calendar is not actually a single calendar that westerners are used to referencing today. It is actually a complex system of multiple calendars used in conjunction. Two calendars used in conjunction are the Tzolk’in and the Haab. The Tzolk’in calendar consists of 260 days. The Haab consists of 365 days. The combined use of these calendars creates a cycle of 52 Haabs (52 years) and is referred to as the Calendar Round. Small cycles of 13 days (Trecena) and 20 days (veintena) exist as well.
Another interesting cycle is the precession of the equinoxes lasting approximately 26,000 years. The long count of 5,125 years is 1/5 of that cycle. December 21, 2012 marks the end of the Long Count and Precession Cycle. A fascinating astronomical occurrence will take place that day. The sun will be seen in a conjunction with the crossing point of the galactic equator and the ecliptic which is referred by the Mayans as the Sacred Tree. Since this is due to take place on the winter solstice, this should provide clear evidence that the proper end day of the Mayan calendar is December 21, 2012. Some say December 22,nd, 23rd or even other dates. However, the solstice was an important day to the Mayans and it is logical to think that they would conclude their calendar cycle on this day, coupled with the fact of the rare astronomical occurrence set to take place that day.
