A typical individual story segment in the original series The Powerpuff Girls lasts 11 minutes.
The program commonly presented two separate short stories within a half-hour television slot. That structure was standard for many animated series of the era, allowing each story to have its own conflict, climax, and ending while keeping the overall broadcast lively.
This format explains why viewers may remember an episode title as a pair of adventures. Episode guides can list individual segments, broadcast pairings, or production groupings, and those counting systems do not always look identical.
The 11-minute figure describes the usual story length, not the total time occupied by advertising, network presentation, or an entire broadcast block. It also applies to the original series format rather than automatically describing every special, film, or later adaptation.