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Spring Equinox, Chunfen(春分) in Chinese, is the 4th solar term and signals the equal length of the day and night. This year, it starts on March 20th and ends on April 3rd. On the day of the Spring Equinox, the sun will be directly above the equator.
春分，24节气中的第4个节气，标志着南北半球昼夜平分。今年从3月20日开始，到4月3日结束。春分以后，太阳直射位置由赤道向北半球推移，北半球各地昼渐长夜渐短，南半球各地夜渐长昼渐短。
After the equinox, the sun' Egg-standing game' is an ancient custom during the Spring Equinox season. It is said that a smooth and well-proportioned egg that has just been laid for four or five days can stand on the day of the spring equinox.
春分时节有一个古老的习俗，就是"春分竖蛋"或"春分立蛋"。据说要选择光滑匀称、刚生下四五天的生鸡蛋在春分这一天立住。