Implement the algorithm for the lunar calendar

[LouisAldorio]

what do you mean by that ?, can you elaborate, ?, does this mean that the gan zhi calculation will break when we input the year 2101?, also if I input from solar calender, the translation to lunar will be broken ?, is that what you refer to ?

can you give me further explanation in english , maybe I can contribute for the un done todo,

do you calculate the gan zhi with Lunar Calender ?, is so then the calculation of gan zhi will be not accurate if the lunar year is > 2101, even is it support until year 3000. is that the case ?