How do you say “Friday” in Japanese? 「金曜日(きんようび)」Kin‘yōbi
“Friday” is「金曜日(きんようび)」or「金曜(きんよう)」in Japanese. 「金曜日は午後五時に(私は)退社します。」means "I’ll leave the office on Friday at 5 pm."「金曜の夜は同僚と飲み会です。」means "There’s a drinking party with colleagues on Friday night."