Get Current System Time And After That Want To add 30 minutes in That Time
<p>I want to <code>get current time</code> in my application.<br>
Then i want to <code>add 30</code> minutes in the current time.<br>
can any one help me how to achieve this?</p>

<p>I am getting start and stop time from my web service.
eg: ((start time)11:00 am to (stop time) 11:00 pm) 
now i want to add 30 minutes in the current time till the stop time reach.</p>
