How Is The Mayan Calendar Accurate. The mayan calendar was a cosmic multitool, blending astronomy and math to create intricate timekeeping. Now, a recent excavation in guatemala reveals how the system developed over time.

The mayan calendar is a testament to the advanced astronomical knowledge of this ancient civilization and its remarkable predictive accuracy. What we call the mayan calendar is actually a set of three interlocking calendars, the sacred calendar of 260 days called the tzolkin, the solar calendar of 365 days known as the haab,.