✦ Sacred Timekeeping ✦
Maya Sign Calculator
Discover your Tzolk'in Nawal (day sign), tone, Haab' civil date, and Long Count date.
GMT 584283 Correlation Standard
Calculations use the GMT (Goodman-Martínez-Thompson) 584283 correlation constant, validated by living Highland K'iche' Maya daykeeping tradition and radiocarbon dating of Tikal lintels (Kennett et al., 2013).
Understanding Maya Calendar Systems
The ancient Maya developed one of the most sophisticated mathematical and astronomical timekeeping systems in human history. The sacred 260-day Tzolk'in cycle combines 20 day signs (Nawales) with 13 numbers (tones), creating a unique archetype for every day.