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Results for "summer solar term"
Calendar and astronomy
StartLunar-solar converter
Convert lunar and solar dates both ways, with leap months, stems and branches and solar terms, or count days between dates.
Vietnamese lunar calendar
See the lunar date, stems and branches, auspicious hours and holidays for today or any day.
Western zodiac (Sun sign)
Find your Western zodiac sign from your birthday, with a short note for today.
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.
What is Tiết khí?
Solar terms are 24 markers dividing the year by the Sun's position on the ecliptic, used in East Asian calendrics to determine seasons and festivals.
What Is Vũ Thủy, the Rain Water Solar Term, When Does It Start, and What Customs Does It Have?
Vũ Thủy, second of the 24 solar terms, marks damp rain and warming soil after winter. This explains its dates, meaning, and folk customs.
The Origin and Meaning Behind the Name "Tết Nguyên Đán"
The name "Tết Nguyên Đán" comes from "Tiết," a marker in the agricultural calendar, and "Nguyên Đán," meaning the first morning of the new year.
Tam nguyên and the 18 Ju of Qimen: How to Derive the Ju Number from Solar Terms According to the Source Texts
Tam nguyên splits each solar term into three five-day spans, each with one Kỳ Môn cục. The 24-term table follows the Hiệp kỷ biện phương thư.
What Is Mang Chủng Solar Term, When Does It Begin, and What Customs Are Observed?
Mang 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.
What Is Hàn Lộ Solar Term, When Does It Begin, and What Customs Does It Have?
Hàn Lộ is the 17th of the 24 solar terms, beginning around October 8 when the Sun reaches 195 degrees. Learn its meaning and customs.
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.
What Is Đại Thử (Major Heat), When Does It Begin, and What Customs Come With It?
Đại Thử, the 12th solar term and mid-term of the sixth lunar month, begins when the Sun reaches 120 degrees, on 22 or 23 July. Start times 2025 to 2030.
Building the Four Pillars of BaZi from birth date and time: the year pillar changes at Lap Xuan, the month pillar changes at the solar term, the day pillar follows the 60-cycle, and the hour stem is derived from the day stem
BaZi's Four Pillars from birth date and time: the year pillar turns at Lap Xuan, the month at solar terms, the day runs the 60-cycle.
When Does Lập Hạ Begin and What Customs Come With It?
Lập Hạ, the 7th solar term, opens summer when the Sun reaches 45 degrees of longitude, usually on 5 or 6 May. How it is calculated and its customs.
How Ba Tu Major Cycles Are Set: Why They Run Forward or Backward by Gender and the Yin Yang of the Year Stem, How the Starting Age Is Counted from Days to the Nearest Solar Term (Three Days to One Year), and How to Read a Ten Year Major Cycle Together with the Annual Cycle Against the Useful God
Ba Tu major cycles are set by gender and the yin yang of the year stem, with starting age counted from days to the nearest solar term at three days per year.
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 Đại Tuyết, When Does It Begin, and What Customs Are Observed?
Đại Tuyết, the 21st solar term, begins at solar longitude 255 degrees, usually on 7 December, opening the Tý month. Start times 2025 to 2030, Vietnam time.
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.
What Is Kinh Trập, When Does It Begin, and What Customs Are Associated With It?
Kinh 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.
What Is Lập Đông, When Does It Begin, and What Customs Come With It?
Lập Đông is the 19th of the 24 solar terms, marking the start of winter and usually falling on 7 or 8 November each year.
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.
What Is Sương Giáng (Frost's Descent), When Does It Begin, and What Customs Are Observed?
Sương Giáng 2026 begins at 16:39 on 23 October, Vietnam time. The 18th solar term, mid-term of the ninth lunar month: dates, three pentads, customs.
What Is Đại Hàn, When Does It Begin, and What Customs Are Observed?
Đại 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.
What Is Tiểu Thử (Minor Heat)? When Does It Begin and What Customs Are Associated With It?
Tiểu 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.
What Is Tiểu Mãn, When Does It Begin, and What Customs Come With It?
Tiểu Mãn, the 8th solar term, begins on 20 or 21 May when the Sun reaches 60 degrees longitude. In 2026 it starts at 07:28 on 21 May, Vietnam time.
What Is Lập Thu, When Does It Begin, and What Customs Come With It?
Lập Thu, tiết khí thứ 13, đánh dấu chuyển hạ sang thu. Bài giải thích cách tính ngày, ba hậu, gốc tích trong Tuế thời quảng ký và tục lệ.
When Does Thu Phân Begin and What Customs Mark It? A View from Sui Shi Guang Ji and Calendrical Science
Thu 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.
When Does Hạ Chí Begin and What Customs Does It Have?
Hạ 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.
What Is Bạch Lộ (White Dew), When Does It Begin, and What Customs Come With It?
Bạch Lộ (White Dew), the 15th solar term, starts around 7 or 8 September as night vapour condenses into white dew, marking mid-autumn in the calendar.
What Is Tiểu Hàn (Minor Cold)? When Does It Begin and What Customs Come With It?
Tiểu 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.
When Does Lập Xuân Begin and What Customs Mark It?
Lập 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.
When Does Xuân Phân (Spring Equinox) Begin and What Customs Mark It?
Xuân Phân, the fourth of the 24 solar terms, starts on 20 or 21 March in Vietnam time. Exact dates to 2030, its three pentads and the customs around it.
What the Táng Thư Says About Qi, Wind, Water, and the Origin of the Term Feng Shui
The Táng Thư says qi scatters in wind and stops at water, hence phong thủy; water comes first, storing wind second. Read against the Chinese text.
Dong Chi and Tet Dong Chi: the shortest day of the year, che troi nuoc, ancestor worship, and why Dong Chi was once the year's starting point
Dong Chi is the 22nd solar term and the shortest day of the year. For the Chinese community it is Tet Dong Chi, a time for che troi nuoc and ancestor worship.
Vượng tướng hưu tù tử: How Are the Five Elemental States of the Seasons Calculated?
Vượng, tướng, hưu, tù, tử: the five seasonal states of the Five Elements, the rule behind the table, and why books place Earth differently.
The Sun in Astrology: Meaning and Influence on the Birth Chart
The Sun is the soul of the birth chart, standing for ego, consciousness and life purpose. Its sign, house and aspects show how you express yourself and grow.
The 15th Day of the Tenth Lunar Month - Tet Ha Nguyen: The Rice Harvest Thanksgiving Festival Few Still Remember
Tet Ha Nguyen on the 15th day of the tenth lunar month is one of Vietnam's four major traditional festivals, a time to thank heaven and earth.
What Is Tiểu Tuyết (Minor Snow), When Does It Begin, and What Customs Come With It?
Tiểu 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).
The Hexagram of the Day According to Quái khí: What Are Six Days and Seven Parts and the Four Cardinal Hexagrams?
Quái khí maps the 60 hexagrams onto 365 days by the method of Mạnh Hỷ and Kinh Phòng, each ruling six days and seven parts.
Knight of Pentacles Tarot Card: Symbolism and In-depth Meaning
The Knight of Pentacles Tarot card means persistence, discipline and responsibility, with advice to move slowly but surely toward long-term goals.
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.
How to Determine Yang Dun or Yin Dun, the Ju Number, and Zhi Fu and Zhi Shi in Qi Men Dun Jia
Solar terms set Yang Dun or Yin Dun, and the fu tou day sets the yuan. This guide covers ju numbers, super spirit and qi continuation, Zhi Fu and Zhi Shi.
Tarot 7 of Pentacles: Symbolism and In-depth Meaning
Explore the symbolism and in-depth meaning of the 7 of Pentacles in Tarot: patience, reassessment of efforts, and lessons on long-term investment.
