The Mayan calendar is an ancient system used by the Maya civilization to track time and organize their agricultural and religious activities. It consists of several interlocking cycles, the most notable being the Tzolk'in, a 260-day calendar, and the Haab', a 365-day solar calendar. These calendars were used together to create a 52-year cycle known as the Calendar Round. The Mayan calendar is significant not only for its complexity but also for its cultural importance. It was used to determine important dates for ceremonies, festivals, and agricultural events. The calendar reflects the Maya's deep understanding of astronomy and their connection to the natural world.