How to parse time durations from Strings with 2 different Format and add them?
<p>I Have 2 Strings with two different format 
e.g.
First Format : "08:50 09:50"
Second Format : "10:30"</p>

<p>how can i parse  &amp; subtract the first to be 01:00 and add it to the second one after parse it to get total = 11:30 </p>
