noun
same period; same era; contemporary
Refers to the same historical period or era. Often used in contexts comparing people, events, or works from the same time. Can also imply being of the same age when referring to people, but 同い年 is more common for age.
彼はシェイクスピアと同時代の劇作家だ。
He is a playwright contemporary with Shakespeare.
この二つの作品
These two works were written in the same period.