What is the Mayan calendar?

Mayan calendar

What is the Mayan calendar?

The Mayan calendar was a time measurement system that used astronomical information to record recurring cycles .

This system was composed of several types of calendars that were related to each other. The most important were:

  • The Haab calendar , equivalent to 365 Earth days.
  • The Tzolkin calendar , equivalent to 260 Earth days.
  • The calendar wheel , which resulted from the union of the Tzolkin calendar and the Haab.

This time measurement system was created and used by the Mayan civilization, which inhabited Mesoamerica between 2000 BC and 1697 AD , when the fall of the last independent Mayan city at the hands of the Spanish conquerors was recorded.

The function of the Mayan calendar was to mark religious festivals, agree on the proper dates for planting and harvesting food, as well as regulating daily life. In fact, the date of birth of each person was considered a relevant piece of information to understand their life cycles and make predictions about it.

Days, months and years in the Mayan calendar

The basic units of time measurement in the Mayan calendar were:

  • Kin : equivalent to one Earth day. Uinal: 20 kin. It is a unit equivalent to a month of 20 Earth days.
  • Tun : 360 kin. It is a cycle equivalent to a solar year, made up of 18 uinals or "months" of 20 days.
  • Katún : 7200 kin. It is a cycle of 20 tunes (solar years) or 360 uinals (“months”).
  • Baktun : 144,000 kin. It is a cycle of 7,200 uinals ("months"), 400 tunes (solar years) or 20 katuns (cycles of 20 solar years).

The Mayan calendar calculated a period of 5200 tuns, corresponding to 5125, 36 solar years. According to the equivalences with the Gregorian calendar, the recording of time began on August 11, 3114 BC and ended on December 21, 2012.

Haab Calendar

The Haab calendar was a way of measuring the solar year, dividing it into 18 uinals (months) of 20 kin (days) each . That makes a total of 360 days. The remaining 5 days correspond to a period called uayeb or "The 5 unfortunate days."

The Mayans believed that the last five days of tun (year) the world of the living and the dead mixed, which was considered dangerous. To avoid being affected by misfortune, religious rituals were carried out, people avoided leaving the house, among other customs.

In the Haab calendar, each of the 20 kin and 18 uinals has a name, as described below:

Kin (day)

  1. Imix
  2. Ik
  3. Ak'bal
  4. Khan
  5. Chikchan
  6. Cimi
  7. Manik
  8. The mat
  9. Muluk
  10. Okay
  11. Chuen
  12. Eb
  13. Ben
  14. Ix
  15. Menu
  16. Kib
  17. Kaban
  18. Etz'nab
  19. Kawak
  20. Ajau

Uinal (month)

  1. Pop
  2. Uo
  3. Zip
  4. Zotz
  5. Tzec
  6. Xul
  7. Yaxkin
  8. Mol
  9. Chen
  10. Yax
  11. Zac
  12. Ceh
  13. Mac
  14. Kankin
  15. Muwan
  16. Pax
  17. Kayab
  18. Cumku

The 5 Unfortunate Days: Uayeb

See also Calendar.

Tzolkin calendar

The Tzlokin calendar is a system that measures a cycle of 260 kin or solar days. This cycle was divided into thirteen uinals (months) of 20 kin each. As this calendar is not related to any astronomical phenomenon, its usefulness is unknown.

Some experts assure that it is a Venusian calendar, but there is no conclusive evidence in this regard. However, in some remote Mayan communities in Guatemala the Tzlokin calendar is still used to cultivate maize, which may give an indication of at least one of its uses in ancient times.

In the Tzolkin calendar the names of the days are the same as in the Haab system.

Calendar wheel

The calendar wheel was the result of the combination of the Haab and Tzlokin systems. This resulted in cycles of 18,980 kin or days, which in turn equal 52 Haab calendars (that is, 52 years of 365 days), and 73 Tzolkin calendars.

The culmination of a cycle on the calendar wheel is considered a kind of "century" or Mayan era.

The Mayan calendar was a time measurement system that used astronomical information to record recurring cycles .

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