lua-calendrica – Lua implementation of Calendrical Calculations by Dershowitz & Reingold

This is a Lua port of the calendrical algorithms from Calendrical Calculations (4^th edition) by Nachum Dershowitz and Edward M. Reingold.

It covers a wide range of calendars including Gregorian, Hebrew, Islamic, Persian, Chinese, Hindu (modern and old), Tibetan, Balinese, Mayan, Julian, Coptic, Ethiopic, French Revolutionary, Icelandic, Akan, Bahá’í, and more, along with astronomical calculations for sunrise, sunset, lunar phases, and solar terms.

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