title: How to set xAxis in TIME type and formatted like {hh:mm} in Echarts?
body: <p>I want to set xAxis in TIME type and formatted like {hh:mm} , such as 17:45.</p>
  
  <p>In this <a href="http://echarts.baidu.com/demo.html#dynamic-data2" rel="noreferrer">demo</a>, configuration works: </p>
  
  <pre><code>xAxis: {
      type: "time",
  },
  
  value: [
      [now.getFullYear(), now.getMonth() + 1, now.getDate()].join('/'),
      Math.round(value)
  ]
  </code></pre>
  
  <p>But this fails, here is <a href="http://gallery.echartsjs.com/editor.html?c=xrk2YszEs&amp;v=2" rel="noreferrer">my demo</a> in Echarts gallery : </p>
  
  <pre><code>xAxis: {
      type: "time",
  },
  
  value: [
      [now.getHours(), now.getMinutes()].join(":"),
      Math.round(value)
  ]
  </code></pre>
  
  <p>I tried <code>type: "value"</code>, still not working.</p>