When did beginning of spring start this year?

In beginning of spring in 2023, it is February 4th10: 33,21sec.

Solar terms are determined according to the longitude of the sun, so when it reaches 3 15 degrees of longitude, it is beginning of spring.

The beginning of the spring formula: [y * DC]-l; Y: refers to the last two digits of this year; D: refers to a fixed value, generally 0.2422; C: It stands for the century. Calculated by century, the value of C in the 22nd century is 3.87; After calculation, the figures in brackets are rounded off. Then subtract the leap years. So it's February 4 th in early spring this year.