The three methods used today for dating important festivals and events are: The Asian zodiac is not based on constellations, as is the Western (Greek/Roman) zodiac.
The Asian calendar is based on the twelve yearly phases of the moon, known as the twelve-month lunar year (each month lasting between 28 to 31 days).
In Japan, the lunar calendar was abandoned in 1872 in favor of the solar, but even today many temples and shrines continue to use lunar dating for important festivals and events.
In the lunar calendar, the new moon (1st of the month), the half-moon of the first quarter (7th or 8th), the full moon (15th), and the half-moon of the last-quarter (22nd or 23rd), are considered sacred days and known as Today, however, the situation is more complicated, for the lunar calendar is used by some locations, while the solar calendar is used by others.
The sun moves against the background of the stars and different stars are visible at night at different times of the year.
The easiest way to handle the situation was to divide the stars into convenient groups which are nowadays called 'constellations' (from Latin words meaning 'with stars').
The former is based on a lunar year and five 12-year sub-cycles, while the latter revolves around a 12-month solar year.
The Chinese zodiac, moreover, is not equated with constellations, as is the occidental zodiac.
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.
In Japan, the lunar calendar was abandoned in 1872 in favor of the solar (Gregorian) calendar, but even today many temples and shrines continue to use the lunar calendar for important festivals and events. Your sign is not the HARE (as shown above), but rather the TIGER. Such bad-luck days, and there are many, are called In the directions column, NE (U) denotes the upper northeast direction, while NE (L) denotes the lower northeast direction. It was probably in Japan’s Edo Period (1603 - 1867 AD) when the 12 zodiac animals were each associated with one specific patron Buddhist deity, the Eight Buddhist Patron Protector Deities. The most plausible reason involves Chinese Taoism, Feng Shui 風水 (geomancy), and divination, for there are eight interrelated symbols (or trigrams) in Chinese cosmology called the Bā Guà (Chn. The eight trigrams symbolize the unceasingly changing balance of forces and are used in divination. The lunar calendar (zodiac calendar) is based on the waxing and waning of the moon.
For details, see Zodiac Lunar Trivia in Japan below. I’m not sure when this system was actually adopted, but the eight include four guarding the four cardinal directions and four guarding the four semi-directions. There are 29 to 30 days per lunar month, with approximately a one-month disparity between the lunar and solar calendars.