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The Mayan calendar is cyclical, because it repeats every 52 Mayan years. In the long account, the time of calculation began the day ajau and 8 0.0.0.0,0 4 cumkú (in Mayan annotation) that is equivalent to, according to the generally accepted correlation, 1 to the 11 of the 3114 August of a. C. in the calendar gregoriano2. Nevertheless, many mayistas also prefer the date of the 13 of August of the 3114 a. C. as the date of the beginning of the long account.