title: time source somescript.sh : time not displayed
body: <p>I'm trying to know how long a <code>source somescript.sh takes</code>.
  But <code>time source somescript.sh</code> displays nothing.</p>
  
  <p>I have no error but I may do something wrong because with a <code>time date</code> the time it takes to perform the <code>date</code> is displayed.</p>
  
  <p>It works on sh but not on zsh (My default shell).</p>
  
  <p>How should I do?</p>