| Chinese Calendar |
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| The traditional Chinese calendar is a lunisolar calendar which reckons years, months and days according to astronomical phenomena. It was developed by the Qin Dynasty. As of 2017, the Chinese calendar is defined by GB/T 33661-2017 Calculation and promulgation of the Chinese calendar, which the Standardization Administration of China issued on May 12, 2017. |
| The calendar has a year, month and date frame. The key elements are the day, synodic month and solar year. The Chinese calendar is a lunisolar calendar, similar to the Hindu and Hebrew calendars. |
| Elements: |
- day, the time based on the earth's rotation. In the Chinese calendar, a day starts from midnight.
- month, the time is based on the obliquity of the moon path. In the Chinese calendar, a month starts from the dark moon. A month is about 29 17/32 days.
- date, the day number in a month. Days are numbered in sequence from 1 to 29 or 30.
- year, the time based on the earth's revolution. In the Chinese calendar, a year starts from the vernal commence (or the winter solstice). A year is about 365 31/128 days.
- zodiac, 1/12 year, 30° ecliptic. A zodiac is about 30 7/16 days. The zodiac in the Chinese calendar is 45° away from the zodiac in the Babylon system.
- solar term, 1/24 year, 15° ecliptic, a unique concept of monthing method in the Chinese calendar. A solar term is about 15 7/32 days.
- calendric month, the month numbering in a year. The months are numbered according to the zodiac number; some months may be repeated.
- calendric year, the year for the calendric purpose (in culture or religion). In the Chinese calendar, the calendric year starts from the day on which the second (or third) dark moon after winter solstice falls. A calendric year is 353/354/355 or 383/384/385 days.
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| [ Wikipedia - Chinese Calendar ] |
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