Heavenly Stems (天干) and Earthly Branches (地支) calculations. Used for year/month/day pillars in traditional Chinese timekeeping.
Get year GanZhi as a formatted string
Lunar date value
Year GanZhi string, e.g., "甲辰"
Heavenly Stems (天干) and Earthly Branches (地支) calculations. Used for year/month/day pillars in traditional Chinese timekeeping.