The October Seasonal Change of Clothing is a time to put away cooler summer clothes and put on the fall and winter attire. This is mainly for uniforms.
Koromagae: The Time to Change Seasonal Uniforms For Summer In Japan 衣替え ころもがえ
Koromagae on June 1st is one of two times a year that people in Japan are scheduled to changed their uniforms for work or school from winter to summer attire.
