Quick answer · TermIs Qingming a solar term?
Yes, Qingming is one of the 24 solar terms, often associated with tomb sweeping customs in Vietnam.
From the article “What is Tiết khí?”
Calendar and astronomyLunar-solar converter
Convert lunar and solar dates both ways, with leap months, stems and branches and solar terms, or count days between dates.
Start Knowledge › Eastern › Tam ThứcTam 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.
Updated 12 Oct 2026Traditional systems
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
Dictionary › Choosing dates and hoursSolar 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.
Updated 12 Sept 2026Calendar and astronomy
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 › Vietnam › Festival customsThe name "Tết Nguyên Đán" comes from "Tiết," a marker in the agricultural calendar, and "Nguyên Đán," meaning the first morning of the new year.
Updated 6 Sept 2026Culture and belief
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 calendarHàn Lộ is the 17th of the 24 solar terms, beginning around October 8 when the Sun reaches 195 degrees. Learn its meaning and customs.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › BaZiBaZi'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.
Updated 25 Sept 2026Traditional systems
Knowledge › Eastern › BaZiBa 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.
Updated 25 Sept 2026Traditional systems
Knowledge › Eastern › Lunar calendarĐại 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.
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 › Lunar calendarĐại 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.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarLập Đông is the 19th of the 24 solar terms, marking the start of winter and usually falling on 7 or 8 November each year.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarSương 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.
Updated 16 Oct 2026Calendar and astronomy
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 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 calendarTwo 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.
Updated 13 Sept 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarTiểu 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.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarLập 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.
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 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 › Lunar calendarBạch 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.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarLập 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.
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 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 › Eastern › Lunar calendarXuân 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.
Updated 16 Oct 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarHow a lunar leap month is determined, why leap years exist, and why one lunar day in a leap year corresponds to two solar days.
Updated 12 Sept 2026Calendar and astronomy
Knowledge › Eastern › Lunar calendarLunar 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.
Updated 13 Sept 2026Calendar and astronomy
Knowledge › Vietnam › Tet and seasonal ritesDong 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.
Updated 25 Sept 2026Culture and belief
Knowledge › Eastern › Lunar calendarLunar 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.
Updated 12 Oct 2026Calendar and astronomy
Knowledge › Eastern › Tam ThứcSolar 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.
Updated 25 Sept 2026Traditional systems
Dictionary › OtherNguyệt Lệnh (月令) is the Month Pillar's Stem and Branch in BaZi, the seasonal qi of the birth month that shapes the Day Master's strength.
Updated 21 Sept 2026
Knowledge › Vietnam › Date selectionThe twelve trực, from Kiến and Trừ to Khai and Bế, form a twelve-day cycle for judging each day, rooted in old calendars and the Hiệp kỷ biện phương thư.
Updated 14 Oct 2026Traditional systems
Knowledge › Eastern › Philosophy of scienceLunar dates, leap months and solar terms are verifiable astronomy, while auspicious days and lucky stars are a later day-selection layer.
Updated 27 Sept 2026
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 › BaZiOnline Bát Tự charts build fast, but accuracy hinges on birth hour data, time zone, and solar terms. Know when to trust them and when a reader must verify.
Updated 4 Oct 2026Traditional systems
Knowledge › Vietnam › Date selectionXem ngày tốt xấu hôm nay theo lịch âm dựa trên can chi, trực, sao và giờ hoàng đạo. Bài giải thích nguyên lý, cách tra và giới hạn của việc chọn ngày.
Updated 2 Oct 2026Traditional systems
Knowledge › Vietnam › Tet and seasonal ritesTet 2027, the Lunar New Year of the Goat, starts Saturday, February 6, 2027. Public employees may get 7 days off, February 4 to 10.
Updated 16 Sept 2026Culture and belief
Knowledge › Vietnam › Tet and seasonal ritesThanh Minh in Vietnam is mainly an occasion to remember ancestors by visiting graves, unlike China where spring outings also occur.
Updated 23 Jul 2026Culture and belief
Open dataEvery solar day from 1900 to 2100 with its lunar date, leap month flag, day and year stem-branch, the solar term in force and the day officer.
73,414 rowsVersion 1.2.2
Open dataThe start moment of each solar term across 201 years in Vietnam time, with the solar longitude of the mark and a flag for moments falling close to midnight.
4,824 rowsVersion 1.2.4
Open dataEvery solar day from 1900 to 2100 with its ruling hexagram under the Gua Qi method (six days seven parts), the line ruling the day, the position in the sixty-hexagram cycle, the winter solstice anchor and the minutes elapsed since it, the solar term and the cardinal hexagram line for that term. Enough to recompute every row independently.
73,414 rowsVersion 1.2.1
Open dataThe solar date each of the 24 terms begins, for every year from 2020 to 2035, computed from solar longitude in Vietnam time.
384 rowsVersion 1.1.1
Open dataThe sixty hexagrams that take turns ruling the days under the Gua Qi method, in order from Inner Truth at the winter solstice, with their solar month, their rank (duke, sovereign, marquis, grand master, minister) and when each takes over counted from the solstice. The lookup table for the que-ngay-quai-khi-1900-2100 dataset.
60 rowsVersion 1.3.1