But in Japan, there are 72 subdivision seasons called the shichijuni kou. The seasons are named after the birds, insects, plants, and weather of each change in nature every five days.

A budding plum blossom, photographed on Feb. 15 in Futtsu, in Chiba Prefecture, during one of the 72 microseasons that mark the traditional Japanese calendar: this period, between Feb. 14 and 18 ...