Re: Warp Drive in Star Trek Into Darkness - [SPOILERS]
Even if Kronos was actually orbiting Proxima Centauri, the closest star to Earth at 4.3 light years, thats still 2ly per minute. It is crazy fast and makes the galaxy very very very small.
The movie doesn't make it clear how long the trip took, but it does seem very very short.
And that's my opinion.