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Calendar dating systems

calendar dating systems-41

It is not surprising that a few similarities exist between the Chinese and the Hebrew calendar: When determining what a Chinese year looks like, one must make a number of astronomical calculations: First, determine the dates for the new moons.Here, a new moon is the completely "black" moon (that is, when the moon is in conjunction with the sun), not the first visible crescent used in the Islamic and Hebrew calendars.

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However, Chinese astrology does in fact incorporate numerous concepts from the Hellenistic zodiac and from Indo-Iranian astrology, including the Nine Luminaries & the 28 Lunar Mansions.Chinese New Year is the main holiday of the year for more than one quarter of the world’s population.Although the People’s Republic of China uses the Gregorian calendar for civil purposes, a special Chinese calendar is used for determining festivals. The Chinese calendar is based on exact astronomical observations of the longitude of the sun and the phases of the moon.To use the page, your browser must support Java Script and you must not have disabled execution of that language. If the box above says “Your browser supports Java Script”, you're in business; simply enter a date in any of the boxes below and press the “Calculate” button to show that date in all of the other calendars.The Gregorian calendar was proclaimed by Pope Gregory XIII and took effect in most Catholic states in 1582, in which October 4, 1582 of the Julian calendar was followed by October 15 in the new calendar, correcting for the accumulated discrepancy between the Julian calendar and the equinox as of that date. It was calibrated to track the waxing and waning phases of the moon, used as a method for counting years, months, days and hours in the Chinese imperial court and civil calendar, and utilized to forecast one’s future and determine one’s character.

The Chinese Zodiac is part of an elaborate and laborious system based on Chinese astrology, cosmology, and divination.

This page allows you to interconvert dates in a variety of calendars, both civil and computer-related.

All calculations are done in Java Script executed in your own browser; complete source code is embedded in or linked to this page, and you're free to download these files to your own computer and use them even when not connected to the Internet.

The Gregorian calendar is a minor correction to the Julian.

In the Julian calendar every fourth year is a leap year in which February has 29, not 28 days, but in the Gregorian, years divisible by 100 are leap years unless they are also divisible by 400. Whatever the problems of Y2K, they won't include sloppy programming which assumes every year divisible by 4 is a leap year since 2000, unlike the previous and subsequent years divisible by 100, a leap year.

The Coptic calendar has 13 months, 12 of 30 days each and an intercalary month at the end of the year of 5 or 6 days depending whether the year is a leap year or not.