中华万年历

立春，为二十四节气之首，又名正月节、岁节、改岁、岁旦等。立春是干支历二十四节气中的第一个节气，当太阳到达黄经315°时为立春，于每年公历2月3-5日交节。立，是"开始"之意；春，代表着温暖、生长。二十四节气最初是依据斗转星移制定，当北斗七星的斗柄指向寅位时为立春。立春乃万物起始、一切更生之义也，意味着新的一个轮回已开启。在传统观念中，立春具有吉祥的涵义。虽然从气候学上来说，还未进入春天，依然春寒料峭，但寒冬已过，春回大地，万物复苏，大自然开始生机勃发。

Start of Spring (Lichun) is the first of the 24 solar terms, occurring around February 3-5 when the sun reaches 315 degrees celestial longitude. "Li" means "beginning," and "spring" represents warmth and growth. This solar term signifies the beginning of all things and the renewal of life, marking the start of a new cycle. In traditional Chinese culture, Start of Spring also marks the beginning of the year in the Ganzhi calendar system, making it the true astronomical new year.