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13/10/2026, Tuesday 13/10/2026, lunar 4/9 in the year Bính Ngọ

13/10/2026 is Vietnamese Entrepreneurs' Day. It is a hoàng đạo (auspicious) day under Kim Quỹ, day officer Khai, in the solar term Hàn Lộ. Good for: business openings, enrolment, prayers for blessing; open new work, apply for a job; handle home matters, care for family. Avoid: burials; groundbreaking, digging graves; taking on other people's load.

Solar date
13/10/2026
Lunar date
4/9, Bính Ngọ year
Day stem and branch
Canh Thân
Observance
Vietnamese Entrepreneurs' Day
Auspicious hours
Tý, Sửu, Thìn, Tỵ, Mùi, Tuất
  1. Julian day number N of 13/10/20262461327
  2. Day 1: the date of the latest new moon (UTC+7)10/10/2026
  3. Lunar day = N - N(day 1) + 12461327 - 2461324 + 1 = 4
  4. Lunar month, counted from month 11 (the one with the winter solstice)month 9
  5. Lunar year 2026: (2026 - 4) mod 10, mod 12Bính Ngọ
  6. Lunar dateday 4 of month 9, Bính Ngọ year

Based on the traditional almanac, for reference.

Traditional systems

Bát Tự chart

A Bát Tự chart from your birth date and hour, with luck pillars.

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Knowledge › Vietnam › Vietnamese commemorative days

Vietnam Entrepreneurs' Day (Oct 13): Origin and Meaning

Vietnam Entrepreneurs' Day on October 13 was recognized in 2004, tracing back to Ho Chi Minh's 1945 letter to the industrial and commercial sectors.

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Knowledge › Eastern › Numerology

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Explore the meaning of number 4 in Eastern numerology: a symbol of stability, discipline, practicality, and the balance between material and spiritual life.

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What is Địa Chi?

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What is Hoang Ốc?

Hoang Ốc is a Vietnamese folk taboo checked before building a house, sorting lunar age into six positions, three of which are considered unfavourable.

Updated 12 Sept 2026Traditional systems
Dictionary › Stems, branches & zodiac animals

What is Con giáp?

The zodiac animal system is the twelve Earthly Branches, from Rat to Pig, used to reckon years, months, hours and ages in East Asian culture.

Updated 11 Sept 2026Traditional systems
Dictionary › Choosing dates and hours

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.

Updated 12 Sept 2026Calendar and astronomy
Dictionary › Stems, branches & zodiac animals

What is Lục Thập Hoa Giáp?

The Sixty Jiazi is a cycle of 60 sexagenary combinations of Heavenly Stems and Earthly Branches used to number years, months, days and hours.

Updated 12 Sept 2026Calendar and astronomy
Celebrities

Nguyễn Tiến Minh

Badminton player who held the number one spot in Vietnam for 21 years and competed in four Olympics

Celebrities

Đen Vâu

Known for his role as a rapper and musician with many famous songs and active participation in charitable activities

13/10/2026, Tuesday 13/10/2026, lunar 4/9 in the year Bính Ngọ | Nhật Nguyệt