Sho (Mikotonori, or an edict of the Emperor) of October 17, 808, decided to include many other officials as recipients of jifuku (clothes of the season) and started in the beginning to bestow Summer clothes for the months from December to the next May and Winter clothes for the months from June to November to such retainers, both full-timers and part-timers, as those who attended their offices more than 120 days a year, various guards who served more than 80 days a year, chamberlains and deputy chamberlains who worked more than 40 nights a year, and Nakatsukasanojo (Secretaries of Ministry of Central Affairs) or udoneri (Ministerial equerries) who served more than 50 nights a year.
大同(日本)3年9月20日(旧暦)詔によって、以後には諸司にも時服を給わることになり、当初は12月から5月までを夏の時服、6月から11月までを冬の時服とし、長上番上および上日が120日以上の者、諸衛は番上80日以上の者、侍従次侍従夜40日以上の者、中務丞内舎人夜50日以上の者に給わった。