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facts · arithmetic before interpretation
The decisions behind the converter
The modular counts are exact once an epoch is selected. Linking that epoch to a Western date is the part that needs a named scholarly convention.
How the counts interlock
The Long Count radices, 260-day Tzolk’in, 365-day Haab’ and 18,980-day Calendar Round.
Why GMT 584283
A named conversion convention, competing proposals and the civil-day boundary.
Dreamspell is a modern layer
José Argüelles’s 1990–1991 system kept separate from the traditional count.