Formula: [Y*D+C]-L

Note: Y refers to the last two numbers in a year, such as 10 in 2010, 08 in 2008 D=0.2422 L=the number of leap years 21st century C=20.1 20th century=20.888

For example: The date of Grain Rain in 2088=[88x0.2422+20.1]-[88/4]=41-22=19,Grain Rain falls on April 19th.

Exceptions: None

Editor: Wen Yi