Apps nanoTime() method output

[amirihana]

i am using nanoTime() as timestamps to create an interval to execute a certain method like this:

long start=System.nanoTime();
		Log.d("time", "time "+start);
		Log.d("time", "time "+start/1000000);

		while(true)
		{
			long end=System.nanoTime();
			Log.d("end", "end "+end);
			Log.d("end", "end "+end/1000000);

			if(end>=start+number)
			{
				method();
				start=end;
			}

		}

i want my loop (number) to be every 5 seconds. Considering that 1 millisecond is equal to 1000000 nanoseconds, i thought i should add 1000 000 000 as number, but it wasn't correct.
My problem is i cannot interpret the nanoTime() output. i dont want to convert for precision issues.