DayGregorian calendar:21-12-1990
DayLunar calendar:5-11-1990
Day of the week:Friday
DayCanh ThanmonthMau TyyearCanh Ngo
HourZodiac:Rat (23-1), Ox (1-3), Dragon (7-9), Snake (9-11), Goat (13-15), Dog (19-21)
| Gregorian calendar | Lunar calendar |
|---|---|
| December 1990 | November 1990 (Year of the Horse) |
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21
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5
Day:Canh Than, Month:Mau Ty Solar terms:Winter Solstice |
| 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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These days are considered inauspicious: ButLunar Taboo Day"The 5th, 14th, and 23rd of the month - Going out for fun is risky, let alone going out for business..." |
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Day:Canh Than- meaning the Heavenly Stem and Earthly Branch are the same (both Metal), this day is an auspicious day. - Elemental influence: The day is associated with the element of Pomegranate Wood, which is unfavorable for those born in the years of Giap Dan and Mau Dan. - This day belongs to the Wood element, which clashes with the Earth element, except for the following birth years: Canh Ngo, Mau Than, and Binh Thin, which belong to the Earth element and are not affected by Wood. - The day of the Monkey is in harmonious combination with the Snake, and in triple harmony with the Rat and the Dragon, forming a Water element combination. It clashes with the Tiger, forms a harmful combination with the Tiger and the Pig, damages the Pig, destroys the Snake, and completely negates the Rabbit. |
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ButSoup"It is inadvisable to weave cloth or spin silk because the loom will be damaged." 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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: Ox : Ox (Ngưu Kim Ngưu) - Sai Tuan: Bad (Hung Tu). The ruling animal is the ox, governing Friday. Excellent for sailing and tailoring clothes and hats. Starting any undertaking on this day will bring misfortune. This is especially true for setting up camps, building houses, opening doors, weddings, traveling by land, constructing irrigation systems, raising silkworms, planting crops, reclaiming land, and opening businesses. Therefore, major undertakings should not be carried out on this day; another auspicious day should be chosen. : - It falls on the 14th day of the lunar calendar.Kill One KillThings to avoid: setting up a dyeing or pottery kiln, making wine, inheriting a business, entering administrative work, and especially traveling by boat, which inevitably leads to misfortune. - Taurus: The Ox (the buffalo): Venus, an inauspicious star. Avoid construction and marriage. - The day of Ngo Dang Vien is very auspicious. The day of Tuat is peaceful. The day of Dan is a terrible day, no action should be taken, except for the day of Nhâm Dần, which is usable. - The Ox constellation is one of the Seven Malignant Stars; if a child is born under it, they will be difficult to raise. Naming the child after the constellation of the month, year, or day, combined with performing virtuous deeds during the birth month, is the only way to hope to raise a child well. "The Ox star brings misfortune and danger." |
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Truc Thanh What should be doneMaking contracts, transactions, lending, collecting debts, buying goods, selling goods, traveling, sailing, starting new projects, groundbreaking, leveling and filling land, installing doors, burying the dead, erecting scaffolding, building warehouses, making or repairing kitchens, worshiping the Kitchen God, installing machinery (or various types of machines), harvesting rice, digging ponds and wells, draining water, seeking medical treatment, buying livestock, matters related to livestock farming, enrolling in school, performing engagement ceremonies, getting married, hiring people, submitting petitions, learning skills, building or repairing ships, launching ships, painting, pruning trees. Do not:Lawsuits, disputes. |
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Good star: - Auspicious combination: Good for all matters. - The Star of Heavenly Joy (direct and sincere): Auspicious for all matters, especially marriage. - Hoang An Star: Everything will go well - Green Dragon Star (Zodiac Sign): Auspicious for all matters - Green Dragon Star (Zodiac Sign): Auspicious for all matters - Mẫu Thương Star: Auspicious for seeking wealth and prosperity, and for opening businesses. - Great Red Sand: Good for everything Bad star: - Nine Void Star: Avoid traveling, seeking wealth, and opening businesses. - Lonely Star: Unfavorable for marriage - Saturn (Thổ Cẩm): Avoid construction and burial. - The Crying Ghost Star: Unfavorable for rituals and funerals. |
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DayThief:The journey is unfavorable; seeking wealth will be unsuccessful. There is a high risk of theft while traveling. Everything will go very badly. |
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Departing in the Northwest direction to welcome the 'God of Joy'. Departing in the Southwest direction to welcome the 'God of Wealth'. Avoid traveling in the Southeast direction as you may encounter the Crane God (bad omen). |
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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. |
December 21, 1990 corresponds to the 5th day of the 11th lunar month. It was the day of Canh Than, the month of Mau Ty, and the year of Canh Ngo.
December 21, 1990 was a Friday.
The 5th day of the 11th lunar month is an auspicious day.
The 5th day of the 11th lunar month is the dayHeavenly Thief.
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
