394 year Mayan Baktun image = The 13 Baktun time map from the book ~ The Mayan Factor by Jose Arguelles
This image was the first that I began to comprehend the fractal nature of time with back in 1996. The Tzolkin cycle of the Maya of 260 days, is here representing 1,872,000 days (7200 x 260).
Each square, instead of representing 1 day, equals 7200 days (20 x 360) or 7200 / 365.2424 = 19 years + 260.4 days This can also be understood as 1 x 19 year cycle (flower of life) + extra 260 days (1 Tzolkin)
1 column therefore equals 20 x (19 years + 260 days) or 20 x 7200 = 144,000 days 144,000 / 365.2424 = 394 years + 94.5 days
The completion of the cycle is on 21122012 This winter solstice ! see this page: 5125mayanlongcount
A recent evolution of this graphic : alchemyof28 can be found below...
These values are the 5 lunar cycles rounded to 1 decimal place: Synodic = 29.5  ::  { 29.53059 } Anomalistic = 27.5  ::  { 27.55455 } Sidereal = 27.3  ::  { 27.32166 } Tropical = 27.3  ::  { 27.32158 } Draconic = 27.2  ::  { 27.21222 }
The average of all 5 is : 29.5 + 27.5 + 27.3 + 27.3 + 27.2 = 138.8
138.8 / 5 = 27.76
compare this with the 7200 days in 1 Katun and then... 7200 / 260 = 27.69
both of these numbers can be rounded to 1 decimal place with the result being : 27.7
Therefore making the 7200 day cycle of the Katun like the 28 geometric month (alchemyof28) A geometric lunar epoch Alchemy of 7200 days !
IN LAK'ECH Ra:ah
p.s compare the Pentacle ( 5 pointed star ) structure of the above alchemy with the structure of the Long count of 5125.36 years ( x 5 ) = cycle of precession... see graphic below

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