Tuesday 11 December 2018
The Moon is a new crescent, and might just be seen at sunset.
Blue poster lunar calendar Lunar calendar posters from MoonChart.co.uk
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Mayan date calculator

Long count:
Tzolkin: Hun (1) Imix (I)
Red Magnetic Dragon
We unify in order to nurture. Attracting being, we seal the input of birth with the magnetic tone of purpose. We are guided by the power of birth.

Haab: 14 Mak (XIII)
Year bearer: Uuc (7) Manik (VII)

Gregorian: Tuesday 11th December 2018 AD
Julian: Tuesday 28th November 2018 AD
Julian day: 2458464

Date Calculator
Long count:
days added:

How to use the Mayan date calculator:

Adjust the values for one representation of the date, then click the corresponding "Apply" button (on the same line). The whole page will then be updated by the web-server, so that the other values shown agree with the ones you've adjusted.

Dates before about 1582 AD are usually given in the Julian count, as this count was replaced by the Gregorian around that time. This calculator shows both Julian and Gregorian dates.

The Tzolkin and Haab "Apply" buttons find the next occurrence of the given date in the Tzolkin (260-day) or Haab (365-day) cycles; the "Apply both" button finds the next occurrence of both the specified Tzolkin and Haab dates together, in the 18980-day cycle. (To find previous occurrences of given Tzolkin and/or Haab dates, edit the "days added" window and use the "Subtract" button to then move backwards by either 260, 365 or 18980 days.)

The "days added" window shows the number of days since the previously displayed date. (It will be negative if the previously shown date was later than the currently shown one.) Clicking on "Subtract" (without changing the value) will set the calculator to the previously displayed date; clicking on "Add" will add on that many days again.

For example, if you set the Gregorian date to your date-of-birth, and click on the adjacent "Apply" button, the page will be redisplayed to show your birth-date in Mayan form. If you then click on "Set today's date", the page will be redisplayed to show today's date, and the "days added" window will show how old you are, in days.

The "Reset" button removes any alterations you have made on the current display; but unlike the other buttons, it does not send any request to the web-server.

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