当とう時じ

noun, adverb

at that time; in those days

Refers to a specific past period already established in context. Can be used as a noun or adverbially.

• 当とう時じ、私わたしはまだ学がく生せいでした。

  At that time, I was still a student.

• 当とう時じのことを覚おぼえていますか。