five days, the fifth (day of the month)
五日待ってくれ。
Wait five days for me.
彼は五日に一度ここへ来ます。
He comes here once every five days.
四、五日いるでしょ
You're staying for four or five days, right?
— 東京物語 (1953)
五日後、私はまた校長室に呼び出された。
Five days later, I was called into the principal’s office again.