The age range from 60 to 69; someone in their sixties.
母は６０代になってから趣味のサークルに入った。
My mother joined a hobby club after entering her sixties.
６０代は退職や年金受給のタイミングに関する相談が増える世代だ。
People in their sixties increasingly seek advice about retirement and pension timing.
調査では６０代の健康意識が高まっていると報告された。
The survey reported that health awareness is rising among people in their sixties.