When a villain or sequence declared a base/planet/dimension/someone's death to be in 5 minutes, it takes an unusually long time for said death/destruction to occur. This can occur anywhere, in anime, manga, comic books and movies and even video games tend to abuse this rule. Show Example: Freeza in Dragon Ball Z states Namek will explode in 5 minutes.
- 20 episodes later* Planet explodes after Goku defeats Freeza.
Hello, Unknown Troper. You'll need to get known to lend a hand here.