Chinese Calendrics 8.91
Chinese Calendrics - The Chinese Lunar Calendar is a solilunar calendar, consisting of months corresponding exactly to
lunar cycles and years which stay more-or-less in sync with seasonal years. The structure of the
calendar depends on the exact times of certain astronomical events, principally dark moons and
winter solstices.
The solar calendar consists of a series of seasonal years which are
divided into 24 "solar terms". The lunar calendar consists of a series of years which are divided
into 12 or 13 lunar months. A solar year always begins at the (northern) winter solstice. A lunar
month always begins on the day of a dark moon.
Chinese Calendrics is used to do the
following:
To convert between dates in the Chinese solar and lunar calendars and dates
in the Common Era and Julian calendars.
To calculate the date of New Year's Day in the
Chinese lunar calendar.
To ascertain the Western dates of the starts of all lunar months in
a year in the lunar calendar.
To find leap months in the lunar calendar.
To find the
Western dates corresponding to Chinese anniversaries (e.g., birthdays).
To move forward or
backward from a given date (and time) either by a period such as a month (Western or Chinese) or by
any number of days.
To calculate the phase of the Moon for any time within a 6000-year
period.
To search for the next or previous full moon, dark moon, lunar quarter, solar term
or solstice or equinox of a certain type.
To search for a solstice or an equinox in
combination with a dark moon or a full moon.
To search for the next or previous day, month
or year with a certain element-animal correspondence (e.g., the next water-rabbit year or the next
fire-chicken day).
To find days for which the element-animal is the same for day, month and
year.
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