The Maya Calendar The Maya calendar in its final form probably dates from about the 1st century B.C. It is extremely accurate, and the calculations of Maya priests were so precise that their calendar correction is 10,000th of a day more exact than the standard calendar we use today. They used 20-day months, and had two calendar years: the 260-day Sacred Round, or tzolkin, and the 365-day Vague Year, or haab. These two calendars …showed first 75 words of 1037 total…

…showed last 75 words of 1037 total…sacred events and the agricultural cycle. There was thus no need for the average person to understand the calendar, and it could be as elaborate as the priests wanted. The ancient Maya cycle still survives in southern Mexico and the Maya highlands, under the care of calendar priests who still keep the 260-day count for divination and other shamanistic activities. These priests juggled cycles of time and calculated when several of these cycles would coincide.