http://www.angelfire.com/ak4/startre...driaClass.html
To answer your question directly (instead of nit-picking at the technical criteria involved,) I'd say it should take about a day and a half to cross a solar system at low impulse & its' inertial dampers on full. Plus everyone at "General Quarters" & strapped in to safety harnesses in their quarters or in "Op's".
Maybe a few hours if the station were thoroughly emptied-out (prior to the Command Staff boarding & taking "official" posession) & had full-sized Sovereign-Class, Excelsior-Class, or Prometheus-Class ships in attendance to haul it into its new position via tractor-beams.
"We're Starfleet Officers, Mister Kim. 'Weird,' is part of the job."
- Captain Kathrine Janeway, USS Voyager.