Tinh Menh Do
Precise Astronomical Data

24 Solar Terms Calendar for 2018
USA (California)

Accurate 24 solar terms lookup table for 2018 in USA (California) (America/Los_Angeles). 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 USA (California): solar terms are calculated according to the America/Los_Angeles timezone. Tinh Menh Do has adjusted errors based on the center coordinates 33.7513, -117.9939 to ensure the most accurate results for this region.

When do the 24 Solar Terms of 2018 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: America/Los_Angeles (33.75130, -117.99390) • Year: 2018
Spring •
Wood
Minor Snow
Light snow begins to fall in northern regions
Saturday, February 03, 2018 pmt 13:28:46
Major Snow
Snow falls heavily, the climate becomes very cold
Sunday, February 18, 2018 amt 09:18:05
Winter Solstice
Peak of winter, the longest night of the entire year
Monday, March 05, 2018 amt 07:28:14
Minor Cold
The weather is slightly cold, entering the stage of severe cold
Tuesday, March 20, 2018 amt 09:15:17
Major Cold
The coldest period of the year, extreme winter chill
Wednesday, April 04, 2018 pmt 13:12:45
Start of Spring
Spring begins, all things start a new cycle
Thursday, April 19, 2018 pmt 20:12:24
Summer •
Fire
Rain Water
Spring rain appears, humidity increases, plants turn green
Saturday, May 05, 2018 amt 06:25:24
Awakening of Insects
Insects awaken, spring thunder echoes across the sky
Sunday, May 20, 2018 pmt 19:14:38
Spring Equinox
Mid-spring, day and night are equal in length
Tuesday, June 05, 2018 amt 10:29:11
Pure Brightness
Bright and clear weather, time for honoring ancestors
Thursday, June 21, 2018 amt 03:07:12
Grain Rain
Showers beneficial for the growth of cereal crops
Friday, July 06, 2018 pmt 20:41:46
Start of Summer
Summer begins, temperature rises quickly, sun becomes harsh
Sunday, July 22, 2018 pmt 14:00:08
Autumn •
Metal
Grain Bud
Grains begin to fill but are not yet fully ripe
Tuesday, August 07, 2018 amt 06:30:31
Grain in Ear
Cereals blossom, a busy time for sowing and planting
Wednesday, August 22, 2018 pmt 21:08:25
Summer Solstice
Peak of summer, the longest day of the entire year
Friday, September 07, 2018 amt 09:29:49
Minor Heat
The weather begins to be sultry but not yet at its hottest
Saturday, September 22, 2018 pmt 18:54:06
Major Heat
Extremely hot and sweltering weather, the hottest of the year
Monday, October 08, 2018 amt 01:14:51
Start of Autumn
Autumn begins, the air becomes cool and pleasant
Tuesday, October 23, 2018 amt 04:22:08
Winter •
Water
End of Heat
The heat gradually ends, summer heat retreats
Wednesday, November 07, 2018 amt 03:31:27
White Dew
White dew appears, nights begin to turn chilly
Thursday, November 22, 2018 amt 01:00:51
Autumnal Equinox
Mid-autumn, day and night are equal in length
Thursday, December 06, 2018 pmt 20:25:25
Cold Dew
Chilly mist and dew, signaling that winter is approaching
Friday, December 21, 2018 pmt 14:22:12
Frost Descent
Frost forms, temperatures drop significantly
Friday, January 05, 2018 amt 01:49:05
Start of Winter
Winter begins, all things transition into rest
Friday, January 19, 2018 pmt 19:09:21

View solar terms for other years in USA (California)

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View solar terms for 2018 in other regions

📍 Korea (Seoul) 2018 📍 Taiwan (Taipei) 2018 📍 Hong Kong 2018 📍 Canada (Toronto) 2018 📍 Germany (Berlin) 2018 📍 United Kingdom (London) 2018

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 USA (California) (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 USA (California)?

Due to differences in longitude and time zones (America/Los_Angeles), the start time of solar terms in USA (California) 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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