What month is the lunar calendar in spring, summer, autumn and winter?

1, Spring: Lunar New Year to March (beginning of spring to Long Summer).

2. Summer: April to July in the lunar calendar (long summer solstice in beginning of autumn).

3. Autumn: August to 10 (beginning of autumn to beginning of winter).

4. Winter: 10 to the twelfth month (from the beginning of winter to beginning of spring).

Extended data:

1. When the earth revolves around the sun, it also rotates around its own axis, but the axis is not perpendicular to the orbital plane, but has an inclination of 23 degrees and 27 minutes. It is precisely because of this tilt that the direct point of the sun on the earth's surface moves between the Tropic of Cancer and the Tropic of Capricorn, thus forming four seasons: spring, summer, autumn and winter.

2. When the sun shines directly on the Tropic of Cancer, the northern hemisphere gets more solar heat, and the day is longer than the night, so the highest temperature in the northern hemisphere is summer; At this time, the sun shines obliquely in the southern hemisphere, getting less solar heat, and the night is longer than the day. Therefore, the southern hemisphere is in the coldest season of the year-winter.

3. When the earth revolves around the sun for half a week, the direct point of the sun moves from the Tropic of Cancer to the Tropic of Capricorn, and the solar heat gained by the northern hemisphere gradually decreases, from summer to autumn, and then to winter; On the other hand, the southern hemisphere goes from winter to spring, and then to summer.

But the earth's orbit around the sun is not a standard perfect circle, so the summer in the southern hemisphere is slightly hotter than that in the northern hemisphere, and the winter is colder than that in the northern hemisphere.