Step-by-step instructions
- Enter or select Gregorian year (0 = 1 BCE, -1 = 2 BCE).
- Enter or select Month 1-12.
- Enter or select Day 1-31.
- Tap Calculate.
- Review the result shown directly below the calculator.
Return Long Count, Tzolk'in, and Haab positions using GMT correlation 584283.
Return Long Count, Tzolk'in, and Haab positions using GMT correlation 584283.
This converter uses the Goodman-Martínez-Thompson correlation constant 584283. Correlation choices are scholarly conventions, so other published systems can differ.
Example: under GMT 584283, December 21, 2012 corresponds to Long Count 13.0.0.0.0.
Use the result as an estimate based on the values you entered. For planning decisions, double-check that the input units and assumptions match your real situation.
Tip: Keep all values in compatible units and use values from the same time period when the calculator compares two amounts.