title: NSDate time converting from 12hr to 24 hr format
body: <p>hi i have problem while converting Date Formats... 
  the date time is in the Format 12 hour Format like <strong>12/9/2010 4:00:00 PM</strong>
   (Month/date/year Hour:Min:sec Pm)
  i need to Convert it into 24 hour format like <strong>12/9/2010 16:00:00</strong><br>
  Can any one Help me please....
  Thx in advance</p>