The term was first used in Japan in 1963. At that time, Japan was expecting many foreign visitors to the Tokyo Olympics. So a famous Japanese fashion expert suggested the concept of TPO, insisting that people wear clothes that are appropriate for the time, place, and situation so as not to embarrass foreigners.

Keeping TPO in mind is a way to improve your fashion sense. Considering TPO, you can choose clothes that suit your body type or color, and express your personality or mood well. Also, considering TPO, you can leave a good impression on the other person and express respect and consideration.