The age range in your twenties, beginning at 24 and ending at 26. Up until 24 (20-23), you're in your early twenties. After 26 (27-29), you're in your late twenties.
When I hit 24, I had transitioned from my early twenties to my mid-twenties. Then I had a mid-twenties crisis.
by Cspan May 23, 2009