DayGregorian calendar:18-05-2031
DayLunar calendar:27-3-2031
Day of the week:Sunday
DayMau NgomonthYear of the DragonyearTan Hoi
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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| May 2031 | March 2031 (Year of the Pig) |
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18
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27
Day:Mau Ngo, Month:Year of the Dragon Solar terms:Beginning of Summer |
| 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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These days are considered inauspicious: ButTam Nuong DayThis is an inauspicious day; it is considered unlucky to undertake important activities such as opening a business, traveling, getting married, groundbreaking ceremonies, repairs, or building a house, etc. |
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Day:Mau Ngo- meaning the Earth element gives rise to the Metal element (Fire gives rise to Earth), this day is an auspicious day (meaning a good day). - Elemental influence: Heavenly Fire day, unfavorable for those born in the years of Ren Zi and Jia Zi. - This day belongs to the Fire element, which clashes with the Metal element, except for those born in the years of Nhâm Thân and Giáp Ngọ, which belong to the Metal element and are not afraid of Fire. - 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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ButMau"Do not accept the land, the landowner will not have good fortune." 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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: Room : Rabbit Room - Auspicious Day: Good (Auspicious Star) Rabbit is the ruling animal for Sunday. All undertakings are auspicious. This day is most suitable for weddings, travel, house construction, burials, sailing, planning, clearing land, and even tailoring. The Sao Phong star is a very auspicious star, so it is not unfavorable for any undertaking. Therefore, this day is suitable for undertaking important matters, especially buying and selling things like houses, land, or vehicles, as it will bring much luck and success. : - The Phòng star is auspicious in both the Dinh Suu and Tan Suu days. It is even better in the Dau day, as the Phòng star reaches its peak in Dau. In the six days of Ky Ty, Ky Dau, Dinh Ty, Dinh Suu, Quy Dau, and Tan Suu, the Phòng star remains auspicious for all other matters, except for burial, which is highly inauspicious. - The star Phòng (Room) falling on the day of Tỵ (Snake) is Phục Đoạn Sát (a negative astrological influence): it is inadvisable to travel, bury the dead, divide family property, inherit property, or start construction of dyeing or pottery kilns. However, it is advisable to build walls, fill holes, wean children, build toilets, and put an end to harmful things. Phòng Nhật Thố (Rabbit): Thái Dương, a good star. This star brings prosperity in wealth and is favorable for both burial and construction. "The room for cultivating and developing the countryside, |
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Truc Man What should be doneSetting out on a journey, traveling by water, lending money, collecting debts, buying goods, selling goods, warehousing, arranging burials, building scaffolding, repairing, installing machinery, hiring additional people, enrolling in technical training, building chicken, goose, and duck coops. Do not:He rose to a high office, took medicine, entered administrative work, and submitted petitions. |
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Good star: - The Heavenly Star (auspicious): Good for all matters, especially building houses, opening businesses, and funerals. - The Heavenly Star (auspicious): Good for all matters, especially building houses, opening businesses, and funerals. - Star of Wealth: Auspicious for seeking wealth, opening businesses, and transactions. - Japanese Star, German Era: Everything goes well Bad star: - Hell Star and Fire Star: Bad for all matters, especially bad for roofing. - Saturn (Heavenly Dog): Avoid construction, digging ponds, digging wells; unfavorable for religious ceremonies. - The Star of Evil: Avoid marriage and moving into a new house. - The Fruit Star: Unfavorable for marriage - The Crying Ghost Star: Unfavorable for rituals and funerals. |
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DayWhite Tiger Tribulation:When setting out on a journey, seeking fortune will be fulfilled; traveling south and north is very auspicious. |
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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'. Avoid traveling in the East 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)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 be thwarted; 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. |
May 18, 2031 corresponds to the 27th day of the 3rd lunar month. It is the day of Mậu Ngọ, the month of Nhâm Thìn, and the year of Tân Hợi.
May 18, 2031 is a Sunday.
The 27th day of the 3rd lunar month is an inauspicious day.
The 27th day of the 3rd lunar month is the dayWhite Tiger Tribulation.
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.