chronometer doesn't stop in android

In my app I want to show a stop timer watch. When I searched through Google I found an option called Chronometer in the developers site. It look's just like a stop timer watch.

When I click the start button I want the timer to get started and when I click the pause button the timer must be paused when once I click the start it must start from the time it's been stopped.

But in this chronometer it get's started from 0 and when I click pause at 1min 10 sec it get paused. When I click once again start after 5min, the timer start the count from 6min 10sec, even at pause the timer is running, how to stop this and get resumed at the time it is been stopped.

Following is my code for chronometer

Start = (Button)findViewById(R.id.widget306);
        Start.setOnClickListener(new View.OnClickListener() 
        {   
            @Override
            public void onClick(View v) 
            {
                chronometer.start();                
            }
        });

        Stop = (Button)findViewById(R.id.widget307);
        Stop.setOnClickListener(new View.OnClickListener() 
        {   
            @Override
            public void onClick(View v) 
            {
                  chronometer.stop();
            }
        });
    }

From the Chronometer doc

Stop counting up. This does not affect the base as set from setBase(long), just the view display.

I dont have any android dev environment right now, so cant investigate on it more :(

Edit: is it the code you have based your code on ? It seems to use setBase to the current time on stop