User blog comment:Miskos3/Fairy Tail Chapter 472: Laxus vs. Wahl, Review/@comment-24817189-20160208215901/@comment-25962249-20160209051946

What do you mean by

"Stop time in a small area around him for a few seconds."

If you can stop time, everything inside the field would be experiencing an infinite amount of time while everything outside would be experiencing none.

That is to say, if the outside observer was to experience any amount of time during the existence of the warp, the user in warp would cease to exist.