DayGregorian calendar:13-09-1981
DayLunar calendar:16-8-1981
Day of the week:Sunday
DayYear of the HorsemonthYear of the RoosteryearTan Dau
HourZodiac:Rat (23-1), Ox (1-3), Rabbit (5-7), Horse (11-13), Monkey (15-17), Rooster (17-19)
| Gregorian calendar | Lunar calendar |
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| September 1981 | August 1981 (Year of the Rooster) |
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13
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16
Day:Year of the Horse, Month:Year of the Rooster Solar terms:White Dew |
| Auspicious Hours (Good Hours) | |
| Rat (23-1), Ox (1-3), Rabbit (5-7), Horse (11-13), Monkey (15-17), Rooster (17-19) | |
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Rat (23:00-23:59); Ox (01:00-02:59); Rabbit (05:00-06:59); Horse (11:00-12:59); Monkey (15:00-16:59); Rooster (17:00-18:59) |
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Tiger (03:00-04:59); Dragon (07:00-08:59); Snake (09:00-10:59); Goat (13:00-14:59); Dog (19:00-20:59); Pig (21:00-22:59) |
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Avoid any days considered inauspicious according to the lunar calendar, such as days of lunar eclipse, days of the Three Nymphs, and days of Yang Gong's prohibitions. |
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Day:Year of the Horse- meaning the Heavenly Stem generates the Earthly Branch (Wood generates Fire), this day is an auspicious day (lucky day). - Elemental influence: The day is associated with Metal in the Sand, unfavorable for those born in the years of Mậu Tý and Nhâm Tý. - This day belongs to the Metal element, which clashes with the Wood element, except for those born in the year of Mau Tuat (Earth Dog), as the clash of Metal and Wood is beneficial for them. - The day of the Horse is in harmonious combination with the Goat, and in triple harmony with the Tiger and Dog, forming a Fire element. It clashes with the Rat, is in conflict with the Horse and Rooster, harms the Ox, destroys the Rabbit, and is in absolute opposition to the Pig. |
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ButArmor"Do not open a shop or business, or you will lose money." ButNoon"It is not advisable to re-roof a house because it will have to be re-roofed later." |
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Day:Void- That is, Hung Day. Things are likely to fail. Work will come to a standstill, progress will be delayed, and obstacles will arise. Money and possessions will be lost, and reputation and prestige will decline. It's a bad day in every respect, so it's best to avoid undertaking any endeavors to minimize the chances of failure. "The Void encounters an urgent divination." |
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: Pure : Star of the Horse - Li Zhong: Bad (Binh Tu) The star of the horse, governs Sunday. Build a new room. Burial, marriage, opening waterways. : - The Star Tinh is auspicious when it meets the days of Dần, Ngọ, and Tuất. Meeting it on the day of Thân is considered auspicious (ascending the chariot): good for construction but dangerous for burial. It is compatible with 7 days: Giáp Dần, Nhâm Dần, Giáp Ngọ, Bính Ngọ, Mậu Ngọ, Bính Tuất, and Canh Tuất. "The stars and the sun are auspicious for building a new home." |
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Direct Transmission What should be donePlanting rice, harvesting rice, buying buffaloes, raising silkworms, hunting animals and fish, pruning trees. Breaking ground, leveling and filling land, women starting the day by taking medicine for illness, assuming official positions, inheriting titles or businesses, entering administrative work, submitting petitions and memorials. Do not:It is inauspicious to start a new job, travel, or attend funerals. |
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Good star: - The Genius Star coinciding with the Golden Treasury Day in the Zodiac: Auspicious for seeking wealth and prosperity, and for opening a business. - Auspicious Star: Good for all matters - Auspicious conjunction of the Year Star: Good for all matters. - Hoang An Star: Everything will go well. - Great Red Sand: Everything will go well Bad star: - The Heavenly Star (or Destroyer Star): Bad for all matters. - Earth Destruction Star: Avoid construction. - The Earth Thief Star: Unfavorable for starting new projects, burials, groundbreaking ceremonies, and travel. - The Meteor Shower in the Noon position: Bad luck in all matters. - Nine Void Star: Avoid traveling, seeking wealth, and opening businesses. - Lu Ban Star Killing Star: Avoid starting new projects. - The Crying Ghost Star: Unfavorable for rituals and funerals. |
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DayHeavenly Wound:Going out to meet superiors is excellent; seeking wealth will bring wealth. Everything will go smoothly. |
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Departing in the Northeast direction to welcome the 'God of Joy'. Departing in the Southeast direction to welcome the 'God of Wealth'. |
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From 11:00 AM to 1:00 PM (Noon) and from 11:00 PM to 1:00 AM (Midnight)Arguments, quarrels, and disputes should be avoided; caution is advised. It is best to postpone departures. Guard against curses and avoid contracting illnesses. In general, activities such as meetings, debates, and official business should be avoided during this time. If it is absolutely necessary to engage in such activities during this time, it is advisable to keep quiet to minimize the risk of fights or arguments. From 13:00-15:00 (Goat) and from 01:00-03:00 (Ox)This is a very auspicious time; traveling often brings good fortune. Business and trade will be profitable. Travelers will soon return home. Women will receive good news. Everything in the household will be harmonious. If there is illness, prayers will bring recovery, and the whole family will be healthy. From 3 PM to 5 PM (Monkey) and from 3 AM to 5 AM (Tiger)Seeking wealth is not beneficial, or often leads to disappointment. Leaving home may result in loss or misfortune; important matters may require sacrifice; encountering evil spirits requires offerings and rituals for peace. From 5 PM to 7 PM (Rooster) and from 5 AM to 7 AM (Rabbit)Everything will go well; it's best to seek wealth in the southwest direction – your home will be peaceful. Those who travel will be safe. From 7 PM to 9 PM (Tuất) and from 7 AM to 9 AM (Thìn)Plans are difficult to succeed; seeking fortune and wealth is uncertain. Lawsuits should best be postponed. No news yet from those who have traveled far. Lost money or belongings, if found in the South, can be recovered quickly. Beware of arguments, conflicts, or petty gossip. Work will be slow and protracted, but it's best to be thorough in everything you do. From 9 PM to 11 PM (Pig) and from 9 AM to 11 AM (Snake)Good news is coming soon. If you are seeking fortune and wealth, head south. Business trips and meetings will bring good luck. Those who travel will receive news. Livestock farming will be prosperous. |
September 13, 1981 corresponds to the 16th day of the 8th lunar month. It was the day of Giap Ngo, the month of Dinh Dau, and the year of Tan Dau.
September 13, 1981 was a Sunday.
The 16th day of the 8th lunar month is an ordinary day.
The 16th day of the 8th lunar month is the dayHeavenly Wound.
Origin of the lunar calendar
The lunar calendar, also known as the perpetual calendar, is a type of calendar based on the cycles of the moon. It is a unique calendar. In fact, the lunar calendar is the Islamic calendar, in which each year contains exactly 12 lunar months. The characteristic of a purely lunar calendar, as in the case of the Islamic calendar, is that it is a continuous cycle of the full moon and is not tied to seasons. Therefore, the Islamic lunar year is about 11 or 12 days shorter than each solar year, and only returns to align with the solar year after every 33 or 34 Islamic years. The Islamic calendar is used primarily for religious purposes. In Saudi Arabia, the calendar is also used for commercial purposes.
Most other types of calendars, whether called "lunar calendars" or perpetual calendars, are in fact lunisolar calendars. This means that in these calendars, the months are maintained according to the cycle of the Moon, but sometimes leap months are added according to certain rules to adjust the lunar cycles to match the solar year. Currently, in Vietnamese, when people talk about the lunar calendar, they think of a calendar based on the principles of the Chinese calendar, but modified according to UTC+7 instead of UTC+8. It is a lunisolar calendar in the truest sense, not a purely lunar calendar. Because the calculation of the lunar calendar differs from that of China, the Vietnamese Lunar New Year sometimes does not completely coincide with the Spring Festival of China and other countries influenced by Chinese culture and the Sinocentric cultural sphere.
Because the purely lunar calendar has only 12 lunar months (corresponding months) in each year, this cycle (354.367 days) is sometimes also called a lunar year.
Lunar and Solar Calendar
The lunisolar calendar is a type of calendar used by many cultures, in which the dates indicate both the lunar phase (or lunar cycle) and the duration of the solar year (solar calendar). If the solar year is defined as the tropical year, the lunisolar calendar will provide indication of the seasons; if it is calculated according to the astronomical year, the calendar will predict the constellations near which a full moon (the "see-see") is likely to occur. There is usually an additional requirement that a year contains only a natural number of months, in most years 12 months, but every two (or three) years there is a year with 13 months.