本程序结合天体运动学计算立春具体时间，结果以北京时间表示，算法简单，科学可靠，误差小于20分钟。方便程序员们日历相关模块的开发，辅助测命大师们起八柱等。-The program combines object specific time kinematic calculation of the beginning of spring, the results in Beijing, said algorithm is simple, scientific and reliable, the error is less than 20 minutes. Programmers to facilitate the development of calendar-related modules, auxiliary measurements from the eight columns life and other masters.