title: Microsecond timing in JavaScript
body: <p>Are there any timing functions in JavaScript with microsecond resolution?</p>
  
  <p>I am aware of <a href="https://github.com/eligrey/timer.js" rel="noreferrer">timer.js</a> for Chrome, and am hoping there will be a solution for other friendly browsers, like Firefox, Safari, Opera, Epiphany, Konqueror, etc.  I'm not interested in supporting any IE, but answers <em>including</em> IE are welcome.</p>
  
  <p>(Given the poor accuracy of millisecond timing in JS, I'm not holding my breath on this one!)</p>
  
  <p>Update: timer.js advertises microsecond resolution, but it simply multiplies the millisecond reading by 1,000.  Verified by testing and code inspection.  Disappointed. :[</p>