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# calendrical_calculations [](https://crates.io/crates/calendrical_calculations)
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Calendrical calculations
This crate implements algorithms from
Calendrical Calculations by Reingold & Dershowitz, Cambridge University Press, 4th edition (2018)
as needed by [ICU4X](https://github.com/unicode-org/icu4x).
Most of these algorithms can be found as lisp code in the book or
The primary purpose of this crate is use by ICU4X, however if non-ICU4X users need this we are happy
to add more structure to this crate as needed.
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## More Information
For more information on development, authorship, contributing etc. please visit [`ICU4X home page`](https://github.com/unicode-org/icu4x).