Center Time opens you a new world. With this nice and beautiful app, you can now stop time without the app runs!
Now you can stop time everywhere you are. It's still possible from homescreen, from a other app and even from the lockscreen.
This is still not everything, you can now add some world time clocks to your app and it will display in the Notification Center, right under the stopwatch.
And when you go some times in the app, you can configure the World clock and the background of the app.
Wait no longer, get it, and have fun!