The traditional Chinese calendar divides a year into 24 solar terms. Lìqià «, Risshà «, Ipchu, or LáºÂp thu () is the 13th solar term. It begins when the Sun reaches the celestial longitude of 135ð and ends when it reaches the longitude of 150ð. It more often refers in particular to the day when the Sun is exactly at the celestial longitude of 135ð. In the Gregorian calendar, it usually begins around August 7 and ends around August 23.
Liqiu signifies the beginning of autumn in East Asian cultures.