The distinctive point
Maya tun: one rung in the Maya Long Count ladder
This unit becomes more informative when read as position 3 of 5 Maya Long Count records by magnitude, with Maya uinal below it and Maya katun above it. Its stated basis is eighteen-uinal; the system relationship is more revealing than an isolated decimal conversion.
Basis: eighteen-uinal. Check the record source.
- smallerMaya uinal18 × Maya uinal
- largerMaya katun1/20 of Maya katun
What this unit was
Maya tun is modelled here as a time standard of the Maya Long Count tradition, associated with Mesoamerica during Classic Maya Long Count. The converter represents one tun as 31104000 s; its basis is eighteen-uinal. This is a defined or exact matrix anchor.
Within that setting, the unit belonged to a working system for civil scheduling, ritual or administrative cycles, and astronomical calculation. It should be read with its period, locality, and evidential basis attached, not as a universal value shared by every culture using a similar name.
Evidence of use and sources
The working value is traceable to Smithsonian Living Maya Time. Its record is classified as high confidence and uses the stated basis rather than an assumed culture-wide constant.
Local-library boundary. The supplied local library has no directly pertinent quotation for this tradition. The linked record source supports the stated conversion; three relevant local quotations require a dedicated source acquisition.
Working definition
Maya tun is represented as a Maya Long Count standard associated with Mesoamerica during Classic Maya Long Count.
The converter uses 31104000 s per unit.
How to use it
Basis: eighteen-uinal; confidence: high. A shared historical name does not make this value portable to another period or polity.
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