title: Add two String Times in java
body: <p>I have two String times </p>
  
  <pre><code>1:30:00
  1:35:00
  </code></pre>
  
  <p>Is there a simple way to add these two times and get a new time which should be something 
  <code>3:05:00</code>?</p>
  
  <p>I want to do this at client side , so if i can avoid any date liabraries</p>