Traditional Culture Encyclopedia - The 24 Solar Terms - When did the days get longer and longer?
When did the days get longer and longer?
The vernal equinox is the time to celebrate festivals on March 20th or March 2nd1day of the Gregorian calendar every year. At the vernal equinox, the sun is located at 0 degree of the yellow meridian, which is the vernal equinox. On this day, the sun shines almost directly on the equator of the earth, and the length of day and night is almost equal around the world, regardless of the refraction of sunlight by the atmosphere and the shadow of the morning. Since the vernal equinox, the direct point of the sun has gradually moved to the northern hemisphere, leading to the gradual lengthening of the days and the shortening of the nights in all parts of the northern hemisphere. This means that the time during the day is gradually increasing and the time at night is gradually decreasing.
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