Introduction - If you have any usage issues, please Google them yourself
Algorithm is as follows:基姆拉尔森formula W = (d+2* m+3* (m+1)/5+ y+ y/4-y/100+ y/400) mod 7 in the formula d said the date the number of days, m said the number of months, y said that the number of years. Note: In the formula and other formulas have a different place: the January and February as the previous year Shisan Yue and Shi Siyue, example: if it is then converted into 2004-1-10: 2003-- 13-10 to represent into the formula.