When Takauji came into power, this enabled Tokiuji and the Yaman clan to wield their influence as the shugo daimyo in the Sanin region; they came to be considered as one of the Shishiki-ke (four administrators' families: Yamana, Isshiki, Akamatsu, Kyogoku).
尊氏の世がくると時氏も運気を掴み、守護大名として山陰地方に大勢力を張り、また赤松氏や京極氏、一色氏と並んで四職家の一つにまで数えられるに至った。