Mayan Calendars
Several Mayan Calendars
The Mayans created several calendars, and the one that people are referring to when they say "Mayan Calendar" concerning the December 21, 2012 date is the long count calendar. This calendar looks at the long term rhythms of the universe. The Mayans see time like a river. The Mayans also see changes in time as differences of tones, frequencies or even octaves, not just a hard measurement of something that never changes.
It takes a long time for the calendar to go through one cycle. The shorter of the long count cycles are approximately 5,000 years and the longest is 26,000 years which coincides with the galactic alignment that happens once every 26,000 years.
Eastern Indian teachings refer to these cycles as "yugas" of which there are four. At this time Earth is leaving the Kali yuga, considered a dark yuga where pain, suffering, and destruction are the energies which Earth must travel through during this yuga. Yugas are like seasons, and the Kali yuga could be considered winter on an energy level.
The Mayan long count calendar has 13 moons, months. It also has 360 days as opposed to the 365 days of the Gregorian calendar that we use today. It is considered more accurate than the 365 day Gregorian calendar. There was also a 584 day Venus cycle calendar that was used and maintained. Another Mayan calendar is an 819 day calendar that not much is known about because many of the records about it were destroyed. The Tzolkin calendar is a 260 day calendar with 20 specific days with specific names each month, of which there were 13 months.
Tzolkin Mayan Calendar
Haab Mayan Calendar
The Mayan Venus Cycle
Mayan Long Count Calendar
What The Mayans Say About 2012
The Mayans created several calendars, and the one that people are referring to when they say "Mayan Calendar" concerning the December 21, 2012 date is the long count calendar. This calendar looks at the long term rhythms of the universe. The Mayans see time like a river. The Mayans also see changes in time as differences of tones, frequencies or even octaves, not just a hard measurement of something that never changes.
It takes a long time for the calendar to go through one cycle. The shorter of the long count cycles are approximately 5,000 years and the longest is 26,000 years which coincides with the galactic alignment that happens once every 26,000 years.
Eastern Indian teachings refer to these cycles as "yugas" of which there are four. At this time Earth is leaving the Kali yuga, considered a dark yuga where pain, suffering, and destruction are the energies which Earth must travel through during this yuga. Yugas are like seasons, and the Kali yuga could be considered winter on an energy level.
The Mayan long count calendar has 13 moons, months. It also has 360 days as opposed to the 365 days of the Gregorian calendar that we use today. It is considered more accurate than the 365 day Gregorian calendar. There was also a 584 day Venus cycle calendar that was used and maintained. Another Mayan calendar is an 819 day calendar that not much is known about because many of the records about it were destroyed. The Tzolkin calendar is a 260 day calendar with 20 specific days with specific names each month, of which there were 13 months.
Tzolkin Mayan Calendar
Haab Mayan Calendar
The Mayan Venus Cycle
Mayan Long Count Calendar
What The Mayans Say About 2012

Source...