Lunar-solar converter
Convert lunar and solar dates both ways, with leap months, stems and branches and solar terms, or count days between dates.
Results for "lunar age calculation"
Calendar and astronomy
StartVietnamese lunar calendar
See the lunar date, stems and branches, auspicious hours and holidays for today or any day.
House-building year check
Check a building year for Kim Lâu, Hoang Ốc and Tam Tai, and find a year clear of all three.
New Year first-footer check
Rank all 60 ages to choose a New Year first visitor, with actual birth years and reasons.
What is Vietnamese lunar age?
Tuổi mụ is the Vietnamese lunar way of counting age: current year minus birth year, plus one, and folk calculations use this number.
Converting Lunar Dates to Solar Dates: What the Calculation Is Based On, and Why It Is Not a Fixed Addition and Subtraction Table
Lunar to solar conversion uses no fixed addition table. It relies on the new moon point, major solar terms and legal time zones, so it differs year by year.
How to Calculate Hoang Ốc for House-Building: the Six Positions Explained
The Hoang Ốc count used before building a house in Vietnam: the six positions and why the digit-sum shortcut gives the same answer.
Why two calendars give different lunar dates for the same solar day, and where time zones come in
Two calendars can give different lunar dates for the same solar day because they use different legal time zones, such as Vietnam at UTC+7 and China at UTC+8.
What is Kim Lâu?
Kim Lâu is a Vietnamese folk taboo checked before building a house or marrying, found by dividing lunar age by nine, with remainders of 1, 3, 6 or 8.
Born Before or After Tết: Which Age Counts? The Difference Between the Tử Vi Lunar Year and the Bát Tự Lập Xuân Marker
Tử Vi dates the birth year from the first day of Tết, Bát Tự from the Lập Xuân solar term. How each fixes age and why some births shift stem-branch year.
What Is Business Compatibility by Age and How to Choose an Age-Compatible Partner?
Business compatibility by age compares partners' birth years via Nạp Âm, Tứ Hóa and Tử Vi palace positions, covering principles, schools and practical use.
What Are the 12 Zodiac Animals? Meaning and How to Calculate Age by Earthly Branches
The 12 Vietnamese zodiac animals and their Earthly Branches, what each animal means, how to calculate age, and the folk relationships.
How does Bát Trạch assess desk direction by age?
Bát Trạch derives a personal trigram from birth year and gender, then matches it to eight directions to choose a desk orientation, with measuring tips.
Couple Age Matching: Can Chi, Nạp Âm or Cung Phi?
Couple age matching has three main methods: earthly branch, nạp âm and cung phi, which often disagree. With a worked example and what old books say.
Coming-of-Age Ceremony at 18 and the Meaning of Filial Piety
The 18-year-old coming-of-age ceremony marks the move from school years to adult duties, with a gratitude ritual at its heart that expresses filial piety.
Cap Sac Ceremony: The Sacred Coming-of-Age Rite of the San Diu People
Explore the Cap Sac ceremony of the San Diu people: its origins, significance, steps, and the role of the 'Hành Quang Dance' in this sacred rite of passage.
Borrowing an Age to Build a House: the Custom, and Where It Must Stop
What age-borrowing means before building a house in Vietnam, how the stand-in is chosen, the five customary steps, and why the symbolic sale is ritual only.
Ede people's coming-of-age ceremony: the ritual of removing bronze rings marking adulthood
In Dak Lak, the Ede coming-of-age ceremony removes a boy's kông bracelets at 17, marking his adulthood and right to join community affairs.
Choosing a First-Foot Visitor by Age Compatibility: Folk Practice, Common Taboos, and the Limits of That Approach
Choosing a first-foot visitor by age compatibility: folk criteria, offerings, step-by-step practice, common taboos, and the limits to keep in mind.
The Vietnamese Lunar Calendar Is Actually a Lunisolar Calendar: Why the Shortened Name 'Lunar Calendar' Causes Misunderstanding
The Vietnamese lunar calendar is actually a lunisolar calendar combining the moon's phases and Earth's orbit around the Sun.
Cap Sac Ceremony of the Dao People: The Most Sacred Coming-of-Age Ritual in a Man's Life
The Cap Sac ceremony of the Dao Dau Bang people in Lai Chau marks a man's coming of age, with strict trials and the conferring of a secret am name.
First-footing for the 2027 Year of the Goat: how to choose an age, and why every household ends up with a different list
For Lunar New Year 2027, there is no single correct first-footer list. Compare the trine and six-harmony groups, the host's age and the guest's character.
Choosing an Auspicious Year to Build a House: Kim Lau, Hoang Oc, Tam Tai, and the Vietnamese Custom of Borrowing Age
Kim Lau, Hoang Oc and Tam Tai restrictions shape the Vietnamese custom of borrowing age to pick a year for building a house.
The Lunar Leap Month: Why It Exists, How It Is Calculated, and Why One Lunar Day in a Leap Year Corresponds to Two Solar Days
How a lunar leap month is determined, why leap years exist, and why one lunar day in a leap year corresponds to two solar days.
Comparing Lunar New Year Customs Across Northern, Central, and Southern Vietnam
Tet customs in Northern, Central, and Southern Vietnam share roots but differ in dishes and rituals, from banh chung to bitter melon soup.
Vietnamese Lunar New Year Customs and the Meaning Behind Each Ritual
Vietnamese Lunar New Year customs: the Kitchen Gods send-off, New Year's Eve rites, first-footing, and lucky money, with the meaning behind each.
Ghost Month, the 7th Lunar Month: Folk Taboos and Buddhist Perspectives
Ghost Month in the 7th lunar month: its origins, common folk taboos, and the Buddhist view of Vu Lan as a season of gratitude and filial piety.
What Is a Great Limit in Vietnamese Astrology, Which Palace Does It Start From, Which Direction Does It Move, and at What Age Does It Begin?
A great limit in Tu Vi is a ten-year span that starts from the Menh palace. Duong Nam and Am Nu move clockwise, Am Nam and Duong Nu move counterclockwise.
Which Buddha and Bodhisattva memorial days are there in the lunar calendar?
Lunar memorial days for Shakyamuni Buddha, Guanyin, Ksitigarbha, Manjushri, Samantabhadra and other Bodhisattvas, with origins and practice notes.
Maturity Number 1 in Numerology: Meaning and Calculation
Maturity Number 1 in numerology points to a life of leadership, independence and pioneering. See how it is calculated from your birth date and full name.
Maturity Number 9 in Numerology: Meaning and Calculation
Discover the deep meaning of Maturity Number 9 in numerology, how to calculate it accurately from your birth name, and its influence on your life purpose.
Maturity Number 5 in Numerology: Meaning and Calculation
Maturity Number 5 in numerology comes from your Life Path and Destiny numbers. It points to freedom and adaptability as your growth goal in later life.
Maturity Number 4 in Numerology: Meaning and Calculation
Maturity Number 4 comes from adding your Life Path and Destiny Numbers. It signals discipline, practicality and a stable foundation in your mature years.
Maturity Number 6 in Numerology: Meaning and Calculation
Explore the deep meaning of Maturity Number 6 in numerology: responsibility, love, perfectionism, and how to calculate this number accurately for yourself.
Maturity Number 2 in Numerology: Meaning and Calculation
Maturity Number 2 in numerology, calculated from your birth date, points to a life purpose of harmony, cooperation and service.
Maturity Number 3 in Numerology: Meaning and Calculation
Maturity Number 3 comes from adding your Life Path and Expression Numbers, and it points to creativity, art and communication in later life.
Maturity Number 8 in Numerology: Meaning and Calculation
Maturity Number 8 comes from adding your Life Path and Destiny Numbers. It means ambition, power and leadership, with a lesson in balance.
Maturity Number 7 in Numerology: Meaning and Calculation
Maturity Number 7 comes from your full birth name and points to your deeper purpose in later life, with themes of wisdom and the search for truth.
Hue Tet Feast: Echoes of Royal Cuisine in the Lunar New Year Meal
The Hue Tet feast blends royal essence with folk culture, shaped by a philosophy of frugality, elegance, harmony and transformation.
What's on in Vietnam in October 2026? Festivals, lunar dates and where to go
Vietnam's October 2026 festival calendar: Côn Sơn Kiếp Bạc, Lam Kinh, Katê, Sene Dolta, Hanoi Autumn Festival, Keo Pagoda, plus lunar dates.
What Makes the 2027 Lunar Calendar Special and How to Look Up Dates Correctly
Lunar calendar 2027: year of Đinh Mùi, Tết on Saturday 6 February 2027, no leap month. Key dates, solar terms, and how to look up dates and convert Can Chi.
Tết Đoan Ngọ: The 5th Day of the 5th Lunar Month "Killing Summer Bugs" Festival
Tết Đoan Ngọ falls at noon on the 5th day of the 5th lunar month, when folk belief says yang energy peaks. The bug-killing custom and ancestor worship.
How Does Lunar New Year for the Ethnic Chinese in Cho Lon Differ from Vietnamese Tet?
How Lunar New Year among the Hoa of Chợ Lớn differs from Vietnamese Tết: Kitchen God send-off, offerings, bánh tổ, assembly halls, visiting order.
Folk Taboos When Making Offerings on the Full Moon and First Day of the Lunar Month
Folk taboos for offerings on the Full Moon and the first day of the lunar month, from choosing fruit and flowers to the incense burner and a reverent mindset.
How to Arrange the Worship Tray for Tet Doan Ngo (5th day of 5th lunar month)
Tet Doan Ngo worship tray guide: offerings like fermented rice and tro cakes, step-by-step arrangement following regional customs, plus safety notes.
