Re: Dates of the Chinese New Year
Re: Dates of the Chinese New Year
- Subject: Re: Dates of the Chinese New Year
- From: Nick Zitzmann <email@hidden>
- Date: Sun, 25 Jan 2009 13:12:14 -0700
On Jan 25, 2009, at 11:55 AM, Kevin Ross wrote:
I see that in the docs that the Chinese calendar is not supported on
10.4-5. Does anyone know if one of the other calendars
(NSBuddhistCalendar or NSJapaneseCalendar maybe?) would be able to
find the beginning of the Chinese New Year?
They won't. The Buddhist and Japanese calendars are pure solar
calendars, and are identical to the Gregorian calendar, except that
the epoch is different. The Gregorian calendar, for example, sets year
1 to the year in which Jesus was believed to be born in, whereas the
Buddhist calendar sets year 1 to the Buddha's birth year, and the
Japanese calendar sets year 1 in any given era to the year in which
the then-emperor was crowned (which would be January 7, 1989 for the
current emperor). But other than that, everything else is the same.
The Chinese calendar is a lunisolar calendar in which months begin and
end based on the moon's appearance over Beijing, with leap time to
make up for the ~12 day difference between lunar and solar years.
There is some stuff in the ICU library that will help you figure out
the position of the moon, which is also important in the Hebrew and
Islamic calendars, but from there, it's up to you. There are some
books on calendrical calculations that you might want to read...
Nick Zitzmann
<http://www.chronosnet.com/>
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