What is the End of Heat?

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 End of Heat is the 14th of the 24 solar terms. It begins when the sun reaches the celestial longitude of 150° and ends when it reaches the longitude of 165°. It usually refers in particular to the day when the sun is exactly at the celestial longitude of 150°. In the Gregorian calendar, it usually begins around Aug 23 and ends around Sept 7.

End of Heat, which is Chushu in Chinese, reflects the changing of temperatures. Chu means “stop” and shu means “summer,” so Chushu indicates that the hot summer is coming to an end. However, it is not cool yet during the period of End of Heat, and in fact it can still be very hot on some days, especially in the afternoons. End of Heat is also a busy season of harvest for farmers.

Formula: [Y*D+C]-[Y/L]

 Note: Y refers to the last two numbers of a year, such as 10 in 2010, 08 in 2008

 D=0.2422

 L=the number of leap years

 21st century C=23.13

 20th century C=23.95

 Example: The date of End of Heat in 2088=[88×0.2422+23.13]-[88/4]=44-22=22, so Limit of Heat falls on Aug 22. 

 

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