Is the winter solstice lunar or solar?

The answer to "shallow and obscure eraser" is wrong.

1. The winter solstice refers to the "winter solstice" on the ecliptic. Every year when the earth reaches this point, it is the winter solstice. Astronomy can make the time of winter solstice accurate to milliseconds. The "Yang" in the solar calendar refers to the sun.

2. The lunar calendar is actually a kind of "yin and yang calendar". That is, the moon goes around the earth for one month and the earth goes around the sun for one year. The gap between the two can be adjusted by setting a "leap month". Known as "seven leap years in nineteen years" and "two leap years in three years". Every 19 years, the lunar calendar and the solar calendar overlap once.

The season, climate and warmth of the earth are determined by the sun. Therefore, the date of winter solstice is accurate according to the solar calendar, but not according to the lunar calendar.