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Tam Tong Mieu Lunar Calendar

Traditional Vietnamese lunar calendar with auspicious hours, solar terms, 12 duties, and 5-tier day evaluations.

Month 10, 2026Tuesday
Term: Frost's Descent
27
Che Day (Minor Inauspicious)Duty Kien (Establish) (Auspicious)
✓ Favorable:Travel, business opening, career appointments
✕ Avoid:Weddings, groundbreaking, funerals
Traditional Lunar Calendar
18
Month 9Full month (30 days)
Day:Jia XuFire
Month:Wu XuWood
Year:Bing WuWater
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Auspicious & Inauspicious Hours Today

12 Time Slots
Zi (23h - 1h)
Ming Fu (Auspicious)
Chou (1h - 3h)
Tian Gui (Auspicious)
Yin (3h - 5h)
Tian Xing (Inauspicious)
Mao (5h - 7h)
Tian Song (Inauspicious)
Chen (7h - 9h)
Yue Xian (Auspicious)
Si (9h - 11h)
Tian De (Auspicious)
Wu (11h - 13h)
Tian Sha (Inauspicious)
Wei (13h - 15h)
Tian Kai (Auspicious)
Shen (15h - 17h)
Sang Shen (Inauspicious)
You (17h - 19h)
Tian Yu (Inauspicious)
Xu (19h - 21h)
Ri Xian (Auspicious)
Hai (21h - 23h)
Di Sha (Inauspicious)

Birth Element & Day Compatibility

Na Yin Elements
Your ElementYi Hai (Fire)
⇄
Day ElementJia Xu (Fire)
Element Harmony (Fire - Neutral)

Day element is in balance with your element: Peaceful conditions, proceed steadily.

How to Use Tam Tong Mieu Lunar Calendar

1

Select Date

Use navigation buttons or the date picker to choose any day.

2

Explore Astronomical Details

Inspect solar terms, Can Chi, day duty, and five elements.

3

Check Auspicious Hours

View the table of 12 hours to pick the best timing for activities.

Key Benefits

  • Accurate astronomical calculations
  • 100% client-side: Works completely offline once loaded
  • Dual daily detail view and monthly full calendar view

Browser & Hardware Notes

  • Calculated according to Vietnam standard time (UTC+7).

Frequently Asked Questions about Tam Tong Mieu Lunar Calendar

It is a celebrated traditional almanac from Southern Vietnam, providing comprehensive insight into the 12 Duties (Trực), 28 Mansions (Thập Nhị Bát Tú), and 5-tier day evaluations.
100% In-Browser Privacy Architecture

How Tam Tong Mieu Lunar Calendar Operates Privately on Your Device

Unlike traditional cloud services that transmit your confidential files across the open internet to remote servers, SafeWebUtil operates on a strict zero-upload client-side architecture. Every transformation performed by Tam Tong Mieu Lunar Calendar executes exclusively within your browser's secure memory sandbox.

Tam Tong Mieu Lunar Calendar is purpose-built to traditional Vietnamese lunar calendar with auspicious hours, solar terms, 12 duties, and 5-tier day evaluations. Its streamlined 3-step workflow (Select Date → Explore Astronomical Details → Check Auspicious Hours) executes locally with zero server roundtrips.

Deterministic Astronomical Formulas

Calculates solar-lunar ephemeris conversions, solar terms, and lunisolar cycles using pure mathematical algorithms running locally in JavaScript.

Classical Combinatorial Computing

Computes 64 I Ching hexagram permutations, Heavenly Stems & Earthly Branches (Can Chi), and Lu Ban architectural dimensional standards in local client memory.

Zero Personal Query Tracking

Birth details, personal dates, and measurement searches are never stored in cookies, databases, or analytics logs. Complete personal privacy is guaranteed.

Engineering Insights & Performance Best Practices for Tam Tong Mieu Lunar Calendar

Astronomical solar and lunar algorithms and I Ching permutations execute mathematically in local JavaScript with zero data logging or telemetry.