title: How to get decimal result when converting nanosecond to millisecond?
body: <p>Using <code>TimeUnit</code>, how can I convert 665477 nanosecond to 0.665477 millisecond?</p>
  
  <pre><code>long t = TimeUnit.MILLISECONDS.convert(665477L, TimeUnit.NANOSECONDS);
  </code></pre>
  
  <p>This always gives <code>0</code> but I need decimal points precision.</p>