Get Chinese New Year (春节) JDE for a Gregorian year
Computes the JDE of the first day of the lunar year (正月初一). The algorithm determines if the preceding year has a leap month (闰岁) and adjusts the new year date accordingly.
Results are cached for performance.
Calendar configuration
Gregorian year
JDE of Chinese New Year
Low-level pure functions for calendar conversion. Most users should prefer the ChineseDate value object API. These functions are useful when you need fine-grained control or want to build custom logic on top of the core algorithms.