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Windows Software for Chinese Calendar date conversion and for the scholarly study of Asian Lunar Calendars
Chinese Calendrics tells you about upcoming Chinese new years and converts Chinese and European calendar dates (and also dates in the Archetypes Calendar). It provides exact times of dark moons and solar terms and is thus an indispensible tool for any serious study of the Chinese Calendar.
Here is a typical screenshot:
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When the cursor is over a date a small box appears with a verbose expression of that date, as shown below.
The lunar calendars used in Vietnam and Japan are the same as the lunar calendar used in China except that (a) the reference longitude is 105° E or 135° E (respectively) instead of 120° E (the Korean lunar calendar uses the same reference longitude as the Japanese) and (b) the sets of 12 animals differ slightly. The months of each year are usually the same in all three calendars, but occasionally differ. This program may be used for all three lunar calendars simply by selecting a country. The background color will change, and the names of some months, as can be seen here: Vietnamese Japanese
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- To get the current date in the Chinese, Vietnamese and Japanese Calendar.
- To convert between dates in the Ch/V/J solar and lunar calendars and dates in the Common Era (Gregorian), Julian and Archetypes calendars.
- To calculate the date of New Year's Day in the Ch/V/J lunar calendar.
- To ascertain the Western dates of the starts of all lunar months in a Ch/V/J year.
- To find leap months in the lunar calendar.
- To find the Western dates corresponding to Ch/V/J 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 Ch/V/J) 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 (relative to any given date) day , month or year with a certain element-animal correspondence (e.g., the next water-ox year or the next fire-dragon day).
- To search for the next or previous day with the same element-animal for the day and the month.
- To search for the next or previous day with a certain element-animal for the day, month and year (e.g., the next fire-dog day in a wood-rat month in a metal-ox year).
- To find days for which the element-animal is the same for day, month and year.
- To study the effect of changes in the reference longitude (105°, 120° or 135° E).
The User Manual
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Many people try to write a program for the Chinese calendar without first really understanding the astronomical rules. The author of this program has done his homework, and the result is impressive. Since the Chinese calendar is very complex, and this program does not shy away from the details, it may seem overwhelming to a casual user. But if power, accuracy and reliability are important, this is the program for you. If you are interested in doing careful analysis of the Chinese calendar, for historical, astronomical or astrological purposes, there is no other alternative. — Helmer Aslaksen, Professor of Mathematics, Singapore National University |
How to obtain the software: A trial version of Chinese Calendrics is available for free download from this website for the purpose of evaluation. Click on the link below for further information:
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Updates: Purchasers of a user license for this software are entitled to an update to any later version at no additional cost.
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