Precise Astronomical Data

24 Solar Terms Calendar for 2004
Vietnam (Hanoi)

Accurate 24 solar terms lookup table for 2004 in Vietnam (Hanoi) (Asia/Ho_Chi_Minh). Data includes start dates and times for solar terms from Lichun to Dahan, calculated using modern astronomical algorithms to help users identify key time markers for agriculture, feng shui, and daily life.

In Vietnam (Hanoi): solar terms are calculated according to the Asia/Ho_Chi_Minh timezone. Tinh Menh Do has adjusted errors based on the center coordinates 21.0285, 105.8542 to ensure the most accurate results for this region.

When do the 24 Solar Terms of 2004 begin?

"The 24 solar terms system reflects the movement of the sun, serving as a guide for agriculture, health, and spiritual life in the East. It is also the basis for many metaphysical calculations."

Location: Asia/Ho_Chi_Minh (21.02850, 105.85420) • Year: 2004
Spring •
Wood
Start of Spring
Beginning of spring, everything starts a new cycle
Wednesday, February 04, 2004 pmt 18:56:07
Rain Water
Spring rain appears, humidity increases, trees turn green
Thursday, February 19, 2004 pmt 14:49:47
Awakening of Insects
Insects wake up, spring thunder echoes through the sky
Friday, March 05, 2004 pmt 12:55:32
Spring Equinox
Middle of spring, day and night are equal in length
Saturday, March 20, 2004 pmt 13:48:25
Pure Brightness
Clear and bright weather, time to visit ancestral tombs
Sunday, April 04, 2004 pmt 17:43:17
Grain Rain
Rain facilitates the growth of cereal crops
Tuesday, April 20, 2004 amt 00:50:15
Summer •
Fire
Start of Summer
Beginning of summer, temperature rises rapidly
Wednesday, May 05, 2004 amt 11:02:26
Grain Bud
Grains start to fill but are not yet ripe
Thursday, May 20, 2004 pmt 23:59:00
Grain in Ear
Grains begin to ear, busy time for planting
Saturday, June 05, 2004 pmt 15:13:38
Summer Solstice
Peak of summer, the longest day of the year
Monday, June 21, 2004 amt 07:56:32
Minor Heat
Weather starts to get sweltering but not at its peak yet
Wednesday, July 07, 2004 amt 01:31:08
Major Heat
Extremely hot weather, the hottest period of the year
Thursday, July 22, 2004 pmt 18:50:04
Autumn •
Metal
Start of Autumn
Beginning of autumn, air becomes cool and pleasant
Saturday, August 07, 2004 amt 11:19:44
End of Heat
Heat gradually ends, summer heat recedes
Monday, August 23, 2004 amt 01:53:22
White Dew
White dew appears, nights start to get chilly
Tuesday, September 07, 2004 pmt 14:13:07
Autumnal Equinox
Middle of autumn, day and night are equal in length
Wednesday, September 22, 2004 pmt 23:29:56
Cold Dew
Cold dew, signaling that winter is approaching
Friday, October 08, 2004 amt 05:49:21
Frost Descent
Frost descends, temperature drops significantly
Saturday, October 23, 2004 amt 08:48:48
Winter •
Water
Start of Winter
Beginning of winter, everything turns to rest
Sunday, November 07, 2004 amt 08:58:31
Minor Snow
Light snow starts to fall in northern regions
Monday, November 22, 2004 amt 06:21:41
Major Snow
Heavy snow, climate becomes very cold
Tuesday, December 07, 2004 amt 01:48:59
Winter Solstice
Peak of winter, the longest night of the year
Tuesday, December 21, 2004 pmt 19:41:48
Minor Cold
Slight cold weather, beginning of the freezing phase
Tuesday, January 06, 2004 amt 07:18:33
Major Cold
Extreme cold, the coldest period of the year
Wednesday, January 21, 2004 amt 00:42:17

View solar terms for other years in Vietnam (Hanoi)

1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009
◀ Previous Year • Next Year ▶

View solar terms for 2004 in other regions

📍 Singapore 2004 📍 Malaysia (Kuala Lumpur) 2004 📍 China (Beijing) 2004

Why is accurate solar terms calculation important?

"Years pass by, solar terms rotate - The foundation of East Asian calendar"

Astronomical Principle

Solar Orbit

The 24 solar terms are determined based on Earth's position on its orbit around the Sun (Ecliptic). The entire 360° circle is divided into 24 equal segments of 15° each.

  • Solar system: Solar terms are actually a solar calendar, fixed to the sun's position.
  • Reference point: Starts from Lichun (315°) or Vernal Equinox (0°).
  • Cycle: Each solar term lasts about 15 days.
Practical Significance

Natural Rhythm

The names of the solar terms reflect the actual changes in climate, weather, and phenology throughout the year, guiding agricultural cultivation and daily life.

  • Subtle observation: Detailed divisions of phases: rain (Yushui), insects awakening (Jingzhe), dew (Bailu)...
  • Metaphysics: Solar terms are the foundation for determining the Can Chi calendar in Eastern metaphysics.
  • Health cultivation: Guidelines for a lifestyle in harmony with the rhythm of nature.
Digital Technology

Precise Calculation

Combines a modern astronomical algorithm (Astronomy Engine) with digital geographic data to provide absolute accuracy.

  • Solar Time (Apparent Solar Time): Calculated based on actual longitude, not just administrative time zones.
  • Multi-platform: Standardized data for any location globally.
  • AI Integration: Analysis and forecasting based on historical and astronomical data.

How to view the solar terms calendar for other years?

View solar terms for other years in Vietnam (Hanoi) (Default location) or re-select another location on the map and search box

Solar Terms Lookup

Select a location on the map for fastest results. Use city search if map selection is imprecise.

Additional Information

What is different about solar term times in Vietnam (Hanoi)?

Due to differences in longitude and time zones (Asia/Ho_Chi_Minh), the start time of solar terms in Vietnam (Hanoi) will differ from Vietnam or International UTC time. The data table above has been accurately converted to local time for easy lookup and application.

Data Accuracy

Data is calculated using algorithms that ensure high accuracy down to the minute for the period from 1950 to 2049.

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