Knowledge › Eastern › Lunar calendarThe Vietnamese lunar calendar is actually a lunisolar calendar combining the moon's phases and Earth's orbit around the Sun.
Updated 12 Sept 2026Calendar and astronomy
Knowledge › Eastern › NumerologyEastern numerology uses Yin-Yang and Five Elements ideas, with numbers 1 through 9 each holding an element. See how birth dates are reduced and read.
Updated 1 Sept 2026Modern system
Knowledge › Eastern › NumerologyNumber 9 in Eastern Numerology stands for completion, wisdom and compassion, and shapes the ideals of people born under it.
Updated 21 Jun 2026Modern system
Knowledge › Eastern › Philosophy of scienceGreek and Indian astrology reached Tang China through Buddhism, yet Tu Vi Dau So and Bat Tu run on the can chi calendar and ngu hanh, not Western star logic.
Updated 28 Sept 2026
Knowledge › Eastern › Lunar calendarĐại Hàn is the last of the 24 solar terms, at solar longitude 300 degrees and lasting about 15 days. Here its calculation, customs, and meaning are explained.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarTiểu Tuyết is the 20th of the 24 solar terms, usually beginning on 22 November in Vietnam time; it is the mid-month qi of the month of Hợi (10th lunar month).
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarTiểu Thử usually begins on July 7 and opens the Mùi month. Start times for 2025 to 2030, the meaning of its name and what classical books record.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarThu Phân, the 16th of the 24 solar terms, begins on 22 to 24 September as the Sun enters the Thọ Tinh station. Its calendar roots and customs, explained.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarTiểu Hàn is the 23rd of the 24 solar terms, at solar longitude 285 degrees. It starts on January 5 or 6, opens the Sửu month and lasts about 14.7 days.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarThe 24 solar terms are seasonal markers tied to Earth's orbit around the Sun, used as a farming guide in the lunar almanac.
Updated 12 Sept 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarLập Xuân, the first solar term of the year, falls on 3 or 4 February (4 February in 2026). How it is calculated, why it changes the year, and its customs.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Vietnam › Tet and seasonal ritesNew Year's Day in Vietnam comes from the Gregorian calendar, adopted in the French colonial period, and later became an official public holiday.
Updated 16 Aug 2026Culture and belief
Dictionary › Stems, branches & zodiac animalsĐịa Chi is a system of 12 symbols, from Rat to Pig, used to mark time, direction and relationships in East Asian calendrics and the Stem-Branch cycle.
Updated 11 Sept 2026Calendar and astronomy
Knowledge › Vietnam › Date selectionA guide to the 12 two-hour blocks of a traditional Vietnamese day, how the 6 auspicious and 6 inauspicious hours are determined, and notes on timing.
Updated 26 Jun 2026Traditional systems
Knowledge › Eastern › PsychologyDutch research links weddings on special dates to an 18 to 36 percent higher divorce risk, mostly from couples' traits, not the date.
Updated 27 Sept 2026
Knowledge › Western › NumerologyWhat is numerology, how to calculate core numbers like Life Path, Expression, Soul Urge, and the meaning of each number in Pythagorean and Eastern systems.
Updated 12 Sept 2026Modern system
Knowledge › Eastern › Lunar calendarMang Chủng is the 9th of the 24 solar terms, usually starting around June 5 or 6 as Tiểu Mãn ends. Its meaning, calendar role, and customs explained.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarHạ Chí begins when the Sun reaches 90 degrees of solar longitude; from 2012 to 2043 it falls on 21 June, Vietnam time. Start times 2025 to 2030, old customs.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › GlossaryNhật Nguyệt is the Sino-Vietnamese pair for sun and moon, symbolizing yin and yang, time, and the cosmos in East Asian culture.
Updated 16 Sept 2026
Knowledge › Eastern › Vietnamese astrologyTai Sui in Tu Vi and Feng Shui: its origins in Jupiter and Chinese mythology, how to find its yearly position, and what offending Tai Sui means.
Updated 21 Jul 2026Traditional systems
Knowledge › Eastern › BaZiThe Year Pillar in BaZi covers ages 0 to 16, bonds with grandparents and ancestors, and the social setting of early childhood.
Updated 3 Sept 2026Traditional systems
Knowledge › Eastern › Vietnamese astrologyClassical Tử Vi uses 12 palaces and 14 main stars to read destiny, while modern Tử Vi is a folk term for everyday chart lookup.
Updated 4 Oct 2026Traditional systems
Knowledge › Eastern › Lunar calendarVũ Thủy, second of the 24 solar terms, marks damp rain and warming soil after winter. This explains its dates, meaning, and folk customs.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarKinh Trập, the third of the 24 solar terms at solar longitude 345 degrees, usually begins March 5 or 6. Origin of the name and start times for 2025 to 2030.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › I ChingQuái khí maps the 60 hexagrams onto 365 days by the method of Mạnh Hỷ and Kinh Phòng, each ruling six days and seven parts.
Updated 14 Oct 2026Traditional systems
Knowledge › Eastern › PsychologyZodiac beliefs may shape birth numbers in Vietnam and East Asia, with larger cohorts in good years and Dragon and Tiger year shifts.
Updated 27 Sept 2026
Knowledge › Eastern › I ChingHeavenly Stem Giap carries the Yang Wood attribute, symbolizing beginnings and growth. In the I Ching, it links to the Zhen and Qian hexagrams.
Updated 7 Jul 2026Traditional systems
Knowledge › Vietnam › Vietnam's ethnic communitiesThe Mnong speak a Mon-Khmer language and live mainly in Dak Lak and Lam Dong, with matrilineal culture and buffalo sacrifice at the new rice festival.
Updated 19 Sept 2026Culture and belief
Knowledge › Eastern › BaZiHà Lạc lý số casts a hexagram from the can chi of a birth date: the number tables, the 25 and 30 reductions, and a worked example from Học Năng's book.
Updated 12 Oct 2026Traditional systems
Dictionary › Western astrologyA natal chart maps the Sun, Moon and planets across the 12 zodiac signs and 12 houses at your birth moment, used in Western astrology.
Updated 12 Sept 2026Traditional systems
Knowledge › Eastern › Feng shuiApply the Five Elements to pick a wedding date, weighing the couple's destiny elements against the day's element for a harmonious start.
Updated 3 Aug 2026Traditional systems
Dictionary › Western astrologyCung Hoàng Đạo is one of twelve equal divisions of the ecliptic, each tied to a constellation and used in Western astrology for personality, love and career.
Updated 12 Sept 2026Traditional systems
Knowledge › Eastern › Feng shuiThe Five Elements' generating and overcoming cycles shape feng shui practice. Identify Metal, Wood, Water, Fire and Earth at home to balance energy.
Updated 23 Jul 2026Traditional systems
Knowledge › Eastern › Zodiac animalsExplore the detailed personality of Dog people: loyal, straightforward, justice-seeking, but also stubborn and quick-tempered.
Updated 17 Jul 2026Traditional systems
Knowledge › Eastern › Vietnamese astrologyLong Tri and Phuong Cac stars in Zi Wei Dou Shu: their origins, meanings, palace placement, and how they combine with other stars.
Updated 1 Sept 2026Traditional systems
Knowledge › Eastern › Feng shui stonesAn overview of feng shui stones: concepts, how to choose stones for your Five Elements destiny and zodiac sign, meanings of popular stones, and care tips.
Updated 10 Sept 2026Traditional systems
Knowledge › Eastern › BaZiTam Hoi joins three consecutive branches of one season; Tam Hop joins three branches one step apart along the Truong Sinh cycle.
Updated 25 Sept 2026Traditional systems
Knowledge › Eastern › Vietnamese astrologyThe Tử Vi Đẩu Số Toàn Thư circulated in the Ming era, its preface crediting La Hồng Tiên with compiling it from works attributed to Hi Di Trần Đoàn.
Updated 25 Sept 2026Traditional systems
Knowledge › Eastern › Tam ThứcTam Thức covers Thái Ất, Lục Nhâm and Kỳ Môn. This piece traces how it reached Vietnam and asks what is history and what is legend around Nguyễn Bỉnh Khiêm.
Updated 25 Sept 2026Traditional systems
Knowledge › Eastern › Feng shuiFeng shui split into two main schools over a thousand years: Jiangxi reads terrain forms, while Fujian li qi calculates with a compass.
Updated 25 Sept 2026Traditional systems