Clock Serivice

application.controller.js

import Ember from 'ember';

export default Ember.Controller.extend({
  appName:'Clock Service',
  clock: Ember.inject.service()
});

application.template.hbs

<h1>{{appName}}</h1>

{{clock.hour}}:{{clock.minute}}:{{clock.second}}

clock.service.js

import Ember from 'ember';

export default Ember.Service.extend({
  tick: Ember.on('init', function() {
    if (this.isDestroyed) return;
    var now = new Date();
    this.setProperties({
			second: now.getSeconds(),
      minute: now.getMinutes(),
      hour:   now.getHours()
    });
    Ember.run.later(this, 'tick', 1000);
  })
});

twiddle.json

{
  "version": "0.4.13",
  "dependencies": {
    "jquery": "https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.js",
    "ember": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.10/ember.debug.js",
    "ember-data": "https://cdnjs.cloudflare.com/ajax/libs/ember-data.js/1.13.13/ember-data.js",
    "ember-template-compiler": "https://cdnjs.cloudflare.com/ajax/libs/ember.js/1.13.10/ember-template-compiler.js"
  }
}