title: Highcharts: Irregular time intervals of datetime x-axis not hovering over all the points
body: <p>I hope someone could point me to the right direction here. I have a series of data that spans over an irregular datetime intervals. But hovering over the points shows only the first date point.</p>
  
  <p><a href="http://jsfiddle.net/8rkcqxyn/" rel="nofollow">http://jsfiddle.net/8rkcqxyn/</a></p>
  
  <pre><code>$(function () {
  $('#container').highcharts({
      exporting: {
          enabled: false
      },
      chart: {
          type: 'spline',
      },
      title: {
          text: 'Debt Obligations'
      },
      xAxis: {
          type: 'datetime',
          title: {
              text: 'Date'
          }
      },
      yAxis: {
          title: {
              text: 'Debt'
          },
          min: 0
      },
      tooltip: {
          headerFormat: '&lt;b&gt;{series.name}&lt;/b&gt;&lt;br&gt;',
          pointFormat: '{point.x:%e. %b}: {point.y}'
      },
      series: [{
          name: 'Debt Obligation',
          data: [
              [Date.UTC(2014, 6, 7), 4500],
              [Date.UTC(2014, 5, 24), 5454],
              [Date.UTC(2014, 5, 23), 222],
              [Date.UTC(2014, 5, 21), 1000]
          ]
      }]
  });
  </code></pre>
  
  <p>});</p>
  
  <p>Appreciate your help.</p>
  
  <p>Thanks</p>