User blog comment:Omega natsu2/Fairy Tail Episode 206: Panic of Library, Review./@comment-2214433-20141101082147/@comment-2214433-20141101083001

Also, maths time.

When you think about it, it makes sense. If 1 day in CS world = 3 months in the real one, and Natsu spent there about 10 mins, the girls needed to spend 15 hours getting to the library and searching for stuff/fighting Virgo for Natsu to appear at that time to meet them there. That's... not so unreal, right?