4×23

4×23 refers to a specific television episode format, commonly found in anime and certain animated series, where a single episode is divided into two distinct segments. Each segment typically runs for approximately 11-12 minutes, allowing for a total runtime of around 23-24 minutes when combined with opening and closing sequences, commercials, and interstitial material. This structure enables the storytelling to cover two related or unrelated plotlines within a single broadcast slot. The first segment is often referred to as "Part A" and the second as "Part B." This format is distinct from a standard 48-minute program which might contain a single, continuous narrative. The 4×23 designation is a shorthand for this common episode length and structure.