Mayan Calendar Ends December 2024 Mexico. One of the mayan’s calendric counting of days ends on december 21, 2012, which many have interpreted as the end of the world. Mayan calendar, dating system of the ancient mayan civilization and the basis for all other calendars used by mesoamerican civilizations.

One of their great cycles supposedly. December 21, 2012 marks the end of an important cycle in the maya long count calendar.