noun
first day of spring (lunisolar calendar)
Refers to the beginning of spring in the traditional 二十四節気 (24 solar terms), around February 4. Commonly used in calendars, seasonal greetings, and cultural contexts.
See also: 二十四節気
今年の立春は二月四日です。
This year's first day of spring (by the traditional calendar) is February 4th.
立春を
Even after the start of spring, cold days continue.