It takes nearly 13 hours for signals to reach the spacecraft and nearly 13 hours for signals to come down to NASA's Deep Space Network on Earth.Voyager 2 is about 13.8 billion kilometers, or 8.6 billion miles, from Earth. Voyager 1 is about 16.9 billion kilometers (10.5 billion miles) away from Earth.
Engineers Diagnosing Voyager 2 Data System - NASA Jet Propulsion Laboratory
http://www.jpl.nasa.gov/news/news.cfm?release=2010-151
Voyager - The Interstellar Mission
http://voyager.jpl.nasa.gov/
