DayGregorian calendar:30-10-2009
DayLunar calendar:13-9-2009
Day of the week:Friday
DayMau ThanmonthYear of the DogyearYear of the Ox
HourZodiac:Rat (23-1), Ox (1-3), Dragon (7-9), Snake (9-11), Goat (13-15), Dog (19-21)
| Gregorian calendar | Lunar calendar |
|---|---|
| October 2009 | September 2009 (Year of the Ox) |
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30
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13
Day:Mau Than, Month:Year of the Dog Solar terms:Frost |
| Auspicious Hours (Good Hours) | |
| Rat (23-1), Ox (1-3), Dragon (7-9), Snake (9-11), Goat (13-15), Dog (19-21) | |
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Rat (23:00-23:59); Ox (01:00-02:59); Dragon (07:00-08:59); Snake (09:00-10:59); Goat (13:00-14:59); Dog (19:00-20:59) |
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Tiger (03:00-04:59); Rabbit (05:00-06:59); Horse (11:00-12:59); Monkey (15:00-16:59); Rooster (17:00-18:59); 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:Mau Than- meaning the Heavenly Stem generates the Earthly Branch (Earth generates Metal), this day is an auspicious day (lucky day). - Elemental influence: Day of Great Earth Plague, unfavorable for those born in the years of Quy Mao and At Mao. - This day belongs to the Earth element, which clashes with the Water element, except for those born in the years of Ding Mui and Quy Hoi, which belong to the Water element and are not affected by the Earth element. - The Rooster day is in harmonious combination with the Dragon, and in triple harmony with the Ox and Snake, forming a Metal element. It clashes with the Rabbit, forms a harmful combination with the Rooster, damages the Dog, destroys the Rat, and completely negates the Tiger. |
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ButMau"Do not accept the land, the landowner will not have good fortune." ButClose"An uneasy bed, evil spirits will enter the room" - No evil spirits, because evil spirits will enter the room. |
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Day:Luu Lien- That is, Hung Day. Things are difficult to accomplish today; delays or complications are likely, making completion hard. Furthermore, gossip and slander are more likely. Regarding administrative matters, legal issues, paperwork, contract signing, and submitting applications, it's best not to rush. "Liu Lian is an ominous sign." |
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: Long : Lau Kim Cau - Luu Long: Good (Auspicious Star) Dog star, governs Friday. Starting any undertaking on this day is auspicious. It is especially good for erecting pillars, weddings, opening doors, building gates, constructing upper floors, making scaffolding, tailoring clothes, draining water, or irrigation projects. Especially for laying bedding, making beds, and traveling by water. : - Golden Dog (the dog): Venus, a good star. Abundant wealth, high academic achievements, very good for marriage and construction. - The Golden Dog Star on the Rooster Day signifies great auspiciousness in undertaking projects. On the Snake Day, it is called Entering the Kitchen, so it is very good. On the Ox Day, it is also good. - If the last day of the month coincides with the "Sao Lau" (Star of Longevity) period, it is considered inauspicious for: making wine, entering administrative work, establishing pottery or dyeing kilns, inheriting businesses, and especially for traveling by boat. "The ancient star-shaped pillar rises, the gate opens." |
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Truc Khai What should be doneSetting out on a journey, traveling by boat, initiating projects, breaking ground, leveling and filling land, constructing warehouses, building or repairing kitchens, worshiping the Kitchen God, making and laying beds, sewing clothes, installing weaving machines or other types of machinery, planting and harvesting rice, digging ponds and wells, draining water, activities related to livestock farming, opening ditches and canals, seeking medical treatment, prescribing and taking medicine, buying buffaloes, making wine, enrolling in school, learning technical skills, painting, and pruning trees. Do not:Burial |
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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. - Traveling Star: Auspicious for all matters, especially travel. - Auspicious Star: Good for seeking wealth and prosperity, and for opening businesses. - Heavenly Blessing: Good for rituals, resolving grievances, warding off evil stars; only avoid groundbreaking ceremonies. If it coincides with the "Direct Opening" day, it is very good, meaning the Heavenly Blessing day coincides with vital energy. Bad star: - Thief Star: Unfavorable for starting new projects, groundbreaking ceremonies, moving into a new house, and business openings. - The Crying Ghost Star: Unfavorable for rituals and funerals. |
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DayXuanwu:Traveling on such a journey often leads to arguments and misfortunes; it's best not to go. |
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Departing in the Southeast direction to welcome the 'God of Joy'. Departing in the North 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)Seeking wealth is not beneficial, or often leads to disappointment. Leaving home may result in loss or misfortune; important matters may be thwarted; encountering evil spirits requires offerings and rituals for peace. From 13:00-15:00 (Goat) and from 01:00-03:00 (Ox)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 3 PM to 5 PM (Monkey) and from 3 AM to 5 AM (Tiger)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 3 PM to 5 PM (Monkey) and from 3 AM to 5 AM (Tiger)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 5 PM to 7 PM (Rooster) and from 5 AM to 7 AM (Rabbit)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. From 7 PM to 9 PM (Tuất) and from 7 AM to 9 AM (Thìn)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 9 PM to 11 PM (Pig) and from 9 AM to 11 AM (Snake)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. |
October 30, 2009 corresponds to the 13th day of the 9th lunar month. It is the day of Mậu Thân, the month of Giáp Tuất, and the year of Kỷ Sửu.
October 30, 2009 was a Friday.
The 13th day of the 9th lunar month is an ordinary day.
The 13th day of the 9th lunar month is the dayXuanwu.
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.
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Issued by the Ministry of Information and Communications on March 24, 2022
