However, many states limit the timeframe to no more than six (6) months. (rocketlawyer.com)
Limiting the timeframe for due process hearings to 100 days so that teachers accused of wrongdoing can either return to the classroom or be dismissed more efficiently. (e4e.org)
By offering him the option of a binding referendum, but only within a very limited timeframe, Cameron is asking him to jump now or not at all. (politics.co.uk)