Date::Chinese(3)

NAME
Date::Chinese - Calculate dates in the Chinese calendar

SYNOPSIS
  use Date::Chinese;

  $year = yearofthe( 1999 ); # "Year of the hare"

DESCRIPTION
Please note that the API of this module is guaranteed to change in future versions. I'll hopefully be adding more details about the date, rather than just the year. And this will be a Date::ICal subclass, so that conversions directly from ICal to Chinese to ISO, for example, will be very simple.

You should also note that the Chinese new year does not conicide with the Gregorian new year, so the determination of what year it is in the Chinese calendar is only going to be correct for a portion of te Gregorian year. I am trying to gain a better understanding of the various issues involved, so that I can have more accurate calculations. Meanwhile, this may amuse you while you're waiting for the real thing.

SUPPORT
datetime@perl.org

AUTHOR
        Rich Bowen
        CPAN ID: RBOW
        rbowen@rcbowen.com
        http://www.rcbowen.com

COPYRIGHT
Copyright (c) 2001 Rich Bowen. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

The full text of the license can be found in the LICENSE file included with this module.

SEE ALSO
 perl(1).
 Reefknot ( http://reefknot.org/ )
 http://dates.rcbowen.com/

About the Chinese calendar
Reference: The Oxford Companion to the Year - Bonnie Blackburn and Leofranc Holford-Strevens. Pg 696-707

The Chinese calendar 19 year cycle. Seven of these 19 years have 13 months, and the rest have 12. There's a whole heck of a lot more to it than the 12 animals that you see on your placemat at your favorite Chinese restaurant.

There is a cycle of 10 stems and 12 branches. Each stem has associated with it an element (wood, fire, earth, metal, water) a yang (fir, kindling, hill, weapons, waves) a yin (bamboo, lamp-flame, plain, kettle, brooks) a cardinal point (east, south, centre, west, north) and a planet (Jupiter, Mars, Saturn, Venus, Mercury).

Likewise, each branch has associated with it an animal, an element, a double-hour, a compass point, and a sign of the zodiac.

Each of these various cycles are going on at the same time, and so interact with each other to produce combinations of all of these different components. And various combinations mean various things.

There are, of course, many folks that have more knowledge of how this all works than I do. I'm just a mathematician. http://www.math.nus.edu.sg/aslaksen/calendar/chinese.shtml seems like a goo place to start, but there are many other very informative sites on the net.