How did the Nguyễn dynasty's Khâm Thiên Giám make calendars and record heavenly signs?
Nguyễn dynasty Khâm Thiên Giám compiled and issued calendars and logged heavenly signs; Đại Nam thực lục records its ranks.
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The Vietnamese Lunar Calendar Is Actually a Lunisolar Calendar: Why the Shortened Name 'Lunar Calendar' Causes MisunderstandingVietnamese lunar calendarVietnamese festival calendarIs the Lunar Calendar Science or Superstition? Two Layers of One Calendar, the Computable Astronomy and the Day-Selection Layer Added LaterWhich Buddha and Bodhisattva memorial days are there in the lunar calendar?Rija Nagar of the Cham: the New Year festival by the Cham calendar
Calendar and astronomy
StartVietnamese lunar calendar
Today's lunar date, what day it is and its good hours, or any other day.
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.
Choosing Year-End Dates: Year-End Gathering, Altar Cleaning, Debt Repayment, and New Year Opening
Year-end dates for the gathering, altar cleaning, debt repayment and New Year opening: lunar calendar principles and flexible use without superstition.
Is the Lunar Calendar Science or Superstition? Two Layers of One Calendar, the Computable Astronomy and the Day-Selection Layer Added Later
Lunar dates, leap months and solar terms are verifiable astronomy, while auspicious days and lucky stars are a later day-selection layer.
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.
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.
Rija Nagar of the Cham: the New Year festival by the Cham calendar
Rija Nagar is the main new year rite of the Brahmanist Chăm: a prayer for good rain and harvest and a sending off of the misfortunes of the old year.
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.
The Twenty-Four Solar Terms: Why the Solar Calendar Lives Inside the Lunar Almanac, and Why It Ties to Farming
The 24 solar terms are seasonal markers tied to Earth's orbit around the Sun, used as a farming guide in the lunar almanac.
Why Does Vietnamese Tet Sometimes Differ from Chinese New Year by a Day or Even a Whole Month?
Vietnamese and Chinese Tet differ because the new moon is calculated in different time zones and leap months follow different rules.
Tet 2027 (Year of the Goat): What Date, How Many Days Off, and What the Goat Year Means
Tet 2027, the Lunar New Year of the Goat, starts Saturday, February 6, 2027. Public employees may get 7 days off, February 4 to 10.
Sene Dolta Festival of Southern Khmer People (Sen Don Ta, Pchum Ben, Ancestor-Repaying Ceremony): Timing, Rituals and Meaning
Sene Dolta (Sen Don Ta, Pchum Ben) in 2026 runs three days, 10 to 12 October. Temple and home rituals and meaning of the Southern Khmer ancestor festival.
Does Friday the 13th Make Stocks Fall, and Do Vietnamese Have Similar "Bad Days"?
Friday the 13th stock studies give conflicting results, and any effect is tiny. Vietnamese lunar bad days have not been studied the same way.
What rites and customs are distinctive to funerals in Huế?
What is distinctive about funerals in Huế: the âm công bearers and their dress, the order of rites, and the city rule on how long a wake may last.
Vietnam Family Day (June 28): Origin and Meaning
Vietnam Family Day on June 28 was established by Decision 72/2001/QD-TTg to honor family values and promote warm, equal, and happy households.
Ke Do Star in the Nine Luminaries - meaning in folk belief
Learn about Ke Do star, one of the three malefic stars in the Nine Luminaries, its influence, remedies and folk beliefs.
How Is the Tay Thien Festival (Full Moon of the Second Lunar Month) Held in Memory of National Mother Lang Thi Tieu?
The Tay Thien Festival runs from the 15th to the 17th of the second lunar month in Dai Dinh Commune, Phu Tho Province, honoring National Mother Lang Thi Tieu.
Lục Nhâm Course Types: What Are Nguyên Thủ, Trùng Thẩm, Tri Nhất, and Thiệp Hại, and How Is a Lục Nhâm Divination Named?
A Lục Nhâm course type names a chart by the overcoming relations among its four courses. The four base types are Nguyên Thủ, Trùng Thẩm, Tri Nhất, Thiệp Hại.
The Ma Ethnic Group: Where They Live, Their Language, Worship Customs and Main Festivals
The Ma live in Lam Dong and Dong Nai, speak a Mon-Khmer language with no script, worship Yang spirits and hold a buffalo sacrifice after harvest.
Ramưwan Festival of the Cham Bani: Timing, Rituals and Meaning
Ramưwan, the month of fasting and prayer of the Chăm Bà Ni: grave visiting, ancestral offerings and the retreat of the dignitaries at the mosque.
Muong Ethnic Group: Where They Live, Their Language, Worship Customs and Main Festivals
The Muong ethnic group speaks a Viet-Muong language and lives mainly in Hoa Binh, Thanh Hoa and Phu Tho, with mo epics, festivals and worship customs.
The Pu Peo People: Where They Live, Their Language, Worship Customs and Main Festivals
The Pu Peo number 903 people as of 2019, living in Ha Giang and speaking a Ka Dai language. Learn their worship customs, weddings, funerals and Tet festivals.
Thai Ethnic Group: Residence, Language, Worship Customs and Main Festivals
Vietnam's Thai ethnic group includes the Black and White branches, speaks the Tay-Thai language, lives in ban-muong villages, and worships ancestors.
Prayers for the 15th Day of the 7th Lunar Month: What the Three Texts Cover, Ritual Order, and What to Know
Rằm tháng 7 prayers include three texts for deities, ancestors, and wandering souls, with ritual order, offerings, and how to recite them.
The Lo Lo People: Where They Live, Their Language, Worship Customs and Main Festivals
The Lo Lo live in Ha Giang, Cao Bang and Lao Cai, speak a Tibeto-Burman language, and are split into the Flowery Lo Lo and Black Lo Lo.
Tet Doi: The Festival of Inviting the Rice Goddesses Back to the Village of the Muong People in Phu Tho
Tet Doi is a festival of the Muong people in Thu Cuc commune, Phu Tho, to invite the 'rice maidens' back to the village.
The Cham People (also called Chàm): Where They Live, Their Language, Worship Customs and Main Festivals
The Cham people (Chàm) speak a Malayo-Polynesian language and live mainly in Ninh Thuận, Bình Thuận and southern provinces, with the Katê festival.
Le Loi - Le Thai To: The Lam Son Uprising and Lam Kinh Festival
Le Loi led the Lam Son uprising from 1418 to 1427, expelling the Ming and founding the Later Le dynasty, honoured still at the Lam Kinh Festival.
Personal Year Number 2 in Numerology: Energy Cycle and Meaning
Personal Year Number 2 in numerology is a cycle of cooperation, patience and emotion. Here is how to calculate it and use this year well.
What is the Day Pillar in BaZi (Four Pillars)?
Learn about the Day Pillar in BaZi: how to determine it, the role of the Day Stem and Day Branch, and its significance in destiny analysis.
Mnong People: Where They Live, Their Language, Worship Customs and Main Festivals
The 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.
What Makes the Cống People's Rooster Comb Flower Festival in Điện Biên Special?
Tết Hoa mào gà is the biggest yearly festival of the Cống in Điện Biên; in Pa Thơm it falls near the full moon of the 10th lunar month. Rites and meaning.
The Bo Y Ethnic Group: Residence, Language, Worship Customs and Main Festivals
The Bo Y ethnic group includes the Bo Y and Tu Di subgroups in Ha Giang and Lao Cai, with two language families and distinct worship and festival customs.
What Does Venus Retrograde Mean and How Does It Affect You
Venus retrograde is an optical illusion, yet astrology links this 40 to 43 day cycle to reviewing love, values and aesthetics.
The Cho Ro People: Where They Live, Their Language, Worship Customs and Main Festivals
The Cho Ro live in Dong Nai's low mountains, speak a Mon-Khmer language, and hold a yearly rice spirit rite plus a forest spirit rite every three years.
Muong Lo Cultural and Tourism Festival 2026, themed "Essence of Thai Xoe, Colors of the Northwest": when it takes place, where, what is on, and why it is tied to Thai Xoe Art?
Muong Lo Cultural and Tourism Festival 2026 runs 1 to 7 October in Lao Cai, opening 20:00 on 2 October and marking five years of UNESCO-listed Thai Xoe.
Personality Traits of People Born in the Year of the Dog According to Folk Beliefs
How folk belief describes Dog people: loyal, straightforward and justice-seeking, but also stubborn and quick-tempered, plus work, love and matching signs.
Bru - Van Kieu People: Where They Live, Their Language, Worship Customs, and Main Festivals
The Bru - Van Kieu people number 94,598 and live along the Truong Son range in Quang Binh, Quang Tri, and Thua Thien Hue.
The Mong ethnic group (also called Meo, H'Mong): residence, language, worship customs, and main festivals
The Mong ethnic group (Meo, H'Mong) had 1,393,547 people in the 2019 census, including White, Flowered, Red, Black, and Green Mong subgroups.
Dong Son bronze drums: dating, star motifs, Lac birds and frog figures and what they say about ancient Vietnamese beliefs
Dong Son bronze drums: their dating, casting techniques, star motifs, Lac birds and frog figures, and what these reveal about ancient Vietnamese beliefs.
What Festivals and Tet Occasions Are There in Vietnam Throughout the Year?
Vietnam's year of festivals and Tet occasions, from Lunar New Year and the first full moon to Mid-Autumn, plus ethnic Tet traditions.
The Ta Oi People: Settlement, Language, Worship Customs and Main Festivals
The Ta Oi live in western Quang Tri and Thua Thien Hue, speak a Mon-Khmer language, and worship spirits with festivals tied to the swidden farming cycle.
