DayGregorian calendar:13-01-2026
DayLunar calendar:25-11-2025
Day of the week:Tuesday
DayYear of the PigmonthMau TyyearYear of the Snake (乙巳)
HourZodiac:Ox (1-3), Dragon (7-9), Horse (11-13), Goat (13-15), Dog (19-21), Pig (21-23)
| Gregorian calendar | Lunar calendar |
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| January 2026 | November 2025 (Year of the Snake) |
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13
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25
Day:Year of the Pig, Month:Mau Ty Solar terms:Xiao Han |
| Auspicious Hours (Good Hours) | |
| Ox (1-3), Dragon (7-9), Horse (11-13), Goat (13-15), Dog (19-21), Pig (21-23) | |
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Ox (01:00-02:59); Dragon (07:00-08:59); Horse (11:00-12:59); Goat (13:00-14:59); Dog (19:00-20:59); Pig (21:00-22:59) |
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Rat (23:00-0:59); Tiger (03:00-04:59); Rabbit (05:00-06:59); Snake (09:00-10:59); Monkey (15:00-16:59); Rooster (17:00-18:59) |
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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 Pig- This means that the Earth element clashes with the Fire element (Water clashes with Fire), making it an inauspicious day (a day of punishment). - Lunar energy: The day is associated with the Earth element (Ốc Thượng Thổ), which is unfavorable for those born in the years Tân Tỵ and Quý Tỵ. - 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 day of the Pig is in harmonious combination with the Tiger, and in triple harmony with the Rabbit and Goat, forming a Wood element combination. It clashes with the Snake, forms a harmful combination with the Pig, damages the Monkey, destroys the Tiger, and completely negates the Horse. |
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ButNail"It is inadvisable to cut or shave one's head, as it can easily lead to boils and pimples." ButPig"No marriage ceremony because the couple will eventually separate." |
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Day:Little Cat- that is, an auspicious day In this period, everything will go well for Xiao Ji, with few obstacles. Major undertakings will be successful and smooth, aided by divine blessings and protection, and supported by influential people. "Little Cat meets the dragon fruit association" |
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Wing : Fire Serpent - Copper Star: Bad (Inauspicious Star) The star of the snake, governs Tuesday. Cutting your shirt will bring you wealth. Activities such as burials, house construction, laying foundation stones, erecting roof beams, weddings, installing doors and windows, and irrigation projects are considered inauspicious. Therefore, if you are planning to undertake any of these activities, you should choose an auspicious day in the month. : - Fire Serpent (the snake): Fire element, an inauspicious star. Unfavorable for marriage, building a house, or burial. - The Fire Serpent Star in the signs of Monkey, Rat, and Dragon is very auspicious. In Dragon: Its most favorable position is the strongest. In Rat: Its auspicious position is very good for inheriting a business or assuming a high-ranking position. "The unfavorable star indicates a high price on the road." |
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Direct Closure What should be doneBuild walls, bury the dead, install doors, erect scaffolding, build bridges. Start work on dyeing and pottery kilns, take medicine, treat illnesses (but do not treat eye diseases), and prune trees. Do not:Taking up an official position, inheriting a title or career, enrolling in school, or receiving treatment for eye diseases. |
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Good star: - Auspicious Star: Good for seeking wealth and prosperity, and for opening businesses. Bad star: - Black Tortoise Star (Chu Que) inauspicious day: Avoid moving into a new house or opening a business. - The Star of Sin indicates: Bad for rituals and lawsuits. - The Crying Ghost Star: Unfavorable for rituals and funerals. |
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DayHeavenly Way:Traveling abroad in search of wealth should be avoided; even if successful, it will be very costly, illogical, and lead to loss. |
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Departing in the due South direction to welcome the 'God of Joy'. Departing in the East direction to welcome the 'God of Wealth'. Avoid traveling in the Northwest 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)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 13:00 to 15:00 (Goat) and from 01:00 to 03:00 (Ox)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 3 PM to 5 PM (Monkey) and from 3 AM to 5 AM (Tiger)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 5 PM to 7 PM (Rooster) and from 5 AM to 7 AM (Rabbit)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 7 PM to 9 PM (Tuất) and from 7 AM to 9 AM (Thìn)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 9 PM to 11 PM (Pig) and from 9 AM to 11 AM (Snake)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. |
January 13, 2026 corresponds to the 25th day of the 11th lunar month. It is the day of Dinh Hoi, the month of Mau Ty, and the year of At Ty.
January 13, 2026 is a Tuesday.
The 25th day of the 11th lunar month is an inauspicious day.
The 25th day of the 11th lunar month is the dayHeavenly Dao.
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.