title: What is the best way to implement a global "last update time" in AngularJS?
body: <p>I am a noob to AngularJS and I'm using it to build a real-time dashboard.</p>
  
  <p>I would like to have the last update time in the upper right-hand corner. This should be updated any time any data changes. I can think of plenty of ways to do this very simply using JQuery, but I'd like to know how best to do it "properly" using AngularJS.</p>