Board Thread:FAQs/@comment-37673419-20181130180514/@comment-185.253.96.154-20190329201600

It's simple, the Speed of UW can change and "Will" change throughout the story.

The 200 years happened in 20min. coz the Speed Controller broke and UW went into the highest speed possible, which is the speed of light. since UW is made out of "light" or photons.

The 2 years Kirito was in UW as we saw in anime, was 1000x speed so was arund 18 hours.

Normally when no one is logged inside UW from outside it's speed is 5000x or somethng. When someone log in like Kirito, they put it to 1000x for safety purpose.