What is Timed-Out in Cricket?

In Cricket terminology, Timed-Out related to dismissal of a batsman as a wicket. When an incoming batsman is not ready to play within three minutes of the previous batsman being out then the batsman is dismissed as Timed-Out. In tests and ODIs it is 3 minutes but in case of T20s it is only 90 seconds. Till now no batsman has timed-out in international cricket.