title: convert hours into seconds in R
body: <p>I have data in format of hours and need to turn everything into seconds . Can anyone help me ?</p>
  
  <p>2:00:00 3:00:00 6:00:00 4:00:00 4:00:00 3:00:48 1:00:00 3:00:00 2:00:00
   4:00:00 1:30:00 2:00:00 1:00:00 3:00:00 4:00:00 4:30:00 5:00:00</p>