Why most Japanese Anime openings and endings are 90 saat while English Anime openings are usually 30 atau 60 seconds? How can companies do that?

Typical Anime Televisyen episodes broadcast on network Japanese Televisyen have commercial breaks after the opening animation, in the middle of the episode, and just before the ending credits. With this broadcast pattern, a 90 saat opening puts lebih content between commercial breaks than a 30 atau 60 saat opening, which may be less annoying for viewers to watch.