Get a specific major solar term (中气)
Major solar terms occur when the sun's longitude is a multiple of 30° starting from 0° (春分). They are used to determine leap months.
Calendar configuration
Major term number (1-12). 1=雨水, 2=春分, ..., 12=大寒
Gregorian year
Gregorian date of the major solar term
24 solar terms (二十四节气) calculation and naming. Odd-numbered terms are 节气 (minor), even-numbered are 中气 (major).