Calendrical Calculations: The Ultimate Edition

by Edward M Reingold, Nachum Dershowitz

An invaluable resource for working programmers, as well as a fount of useful algorithmic tools for computer scientists, astronomers, and other calendar enthusiasts, The Ultimate Edition updates and expands the previous edition to achieve more accurate results and present new calendar variants. The book now includes coverage of Unix dates, Italian time, the Akan, Icelandic, Saudi Arabian Umm al-Qura, and Babylonian calendars. There are also expanded treatments of the observational Islamic and Hebrew calendars and brief discussions of the Samaritan and Nepalese calendars. Several of the astronomical functions have been rewritten to produce more accurate results and to include calculations of moonrise and moonset. The authors frame the calendars of the world in a completely algorithmic form, allowing easy conversion among these calendars and the determination of secular and religious holidays. LISP code for all the algorithms is available in machine-readable form.

ebook

Published April 25, 2018

Reviews

[Stephen Sorensen · Rating 5 out of 5]

This book is a mainly a guide to the various codes needed for modeling calendars. It does however contain a wealth of historical information about the numerous calendars it covers. Even though I had more interest in the historical information than the coding, I think from start to finish this work was well executed.

[Nicholas Lariviere · Rating 5 out of 5]

The definitive book in calendrical systems