Is the winter solstice based on the solar or lunar calendar _ Is the winter solstice based on the lunar or solar calendar?

The winter solstice solar term was established as early as the Spring and Autumn Period in China, and it has a history of more than 2,500 years. It has always been a festival and solar term that people attach great importance to. When people look at the calendar, they will find that the date of the winter solstice is not necessarily the same every year, but fluctuates between a few days. So how to calculate the date of the winter solstice, according to the solar calendar or the lunar calendar, let the old yellow calendar introduce it to you.

Q: Is the winter solstice based on the solar calendar or the lunar calendar?

The winter solstice is calculated according to the solar calendar.

The twenty-four solar terms are determined by the movement cycle of the sun and are divided according to the position of the sun on the ecliptic (that is, the orbit of the earth around the sun), so the date of each solar term is subject to the solar calendar. Depending on the sun starting from the vernal equinox (longitude zero, at this moment the sun shines vertically on the equator), every advance of 15 degrees is a solar term; After running for a week, I returned to the vernal equinox, which is a tropical year with a temperature of 360 degrees. When the sun reaches 270, it is the winter solstice.

The dates of solar terms are relatively fixed in the solar calendar. For example, the date of winter solstice is always between 65438+February 2 1 and 23 in the solar calendar every year. However, in the lunar calendar, the date of solar terms is not easy to determine. Take beginning of spring as an example, it can be 65438+February 15 in previous years at the earliest, and 65438+ 10/5 in Lunar New Year at the latest.

The ancients of our country established twenty-four solar terms to reflect the changes of seasons and guide agricultural activities, which have been affecting the food, clothing, housing and transportation of thousands of families for thousands of years. However, since 2000, the main political centers in China have been concentrated in the Yellow River Basin, and the 24 solar terms were originally established according to the climate and phenology in this area. However, China has a vast territory and changeable terrain, and the 24 solar terms are only a reference for many areas outside the Yellow River Basin.

20 17-2025 Solar Term Schedule of Winter Solstice

20 17 winter solstice time: 65438+00: 27: 53 on February 22nd, the fifth day of November (July) of the lunar calendar.

2065438+2008 winter solstice time: 65438+February 22, 2008 06:22:38 1 1 6, 2065438+2008.

Winter solstice time 20 19: 65438+February 22nd 12: 19: 18,127/2019.

Winter solstice time in 2020: 65438+February 2 1, 18: 02: 12, lunar calendar in 20201/the seventh day of the month.

Winter solstice time is 202 1: 65438+February 21,23: 59: 09, and lunar calendar 1 1 month 18, 202 1.

Winter solstice time in 2022: 65438+February 22nd at 05: 48: 0 1, and lunar calendar in 20221/month 29th.

The time of winter solstice in 2023: 65438+February 22nd, 1 1: 27: 09, and the lunar calendar in 2023 1 1 the tenth day of the month.

Winter solstice time in 2024: 65438+February 2 1, 17: 20: 20, lunar calendar in 20241/month 2 1 day.

Winter solstice in 2025: 65438+February 2 1, 23: 02: 48, lunar calendar in 2025 1 1 the second day of the month.