In summer solstice, the sunrise time is 4:30 and the sunset time is 19: 10. In winter solstice, the sunrise time is 6:50 and the sunset time is 17:00. This is only an approximate time, and the change of air pressure should be considered.

Introduction of solar terms in winter solstice and summer solstice;

The winter solstice (the node of Gregorian calendar 65438+February 2 1-23) is one of the 24 solar terms in the Gregorian calendar, indicating the change of seasons. Fingers are the solstice in winter, that is, the sun runs to 270 degrees of the yellow meridian (the solstice in winter), and the solstice in winter marks the arrival of winter.

The winter solstice was called "short day" or "short day" in ancient times. On the solstice of winter, the sun shines directly on the ground and reaches the southernmost tip of the year. The sun is almost directly on the tropic of Capricorn (also known as the winter solstice daily line), and the sun is most biased towards the northern hemisphere. Therefore, in all parts of the northern hemisphere, the winter solstice is the shortest day in a year, and the farther north, the shorter the day.

On the summer solstice (June 2 1 or 22), when the sun moves to 90 degrees of the yellow meridian (in Gemini), the position where the sun directly hits the ground reaches the northernmost point of the year, almost directly on the tropic of cancer. At this time, the sunshine time is the longest in the northern hemisphere.

In Beijing, the daytime can be as long as 15 hours. On this day, the northern hemisphere gets the most sunshine, almost twice as much as the southern hemisphere.