title: data in x-axis in highcharts with 15mins timeblock
body: <p>I am facing issue in displaying 96 Timeblock on x-axis in highcharts.
  Array which needs to be displayed is </p>
  
  <pre><code>["00:00", "00:15", "00:30", "00:45", "01:00", "01:15", "01:30", "01:45", "02:00", "02:15", "02:30", "02:45", "03:00", "03:15", "03:30", "03:45", "04:00", "04:15", "04:30", "04:45", "05:00", "05:15", "05:30", "05:45", "06:00", "06:15", "06:30", "06:45", "07:00", "07:15", "07:30", "07:45", "08:00", "08:15", "08:30", "08:45", "09:00", "09:15", "09:30", "09:45", "10:00", "10:15", "10:30", "10:45", "11:00", "11:15", "11:30", "11:45", "12:00", "12:15", "12:30", "12:45", "13:00", "13:15", "13:30", "13:45", "14:00", "14:15", "14:30", "14:45", "15:00", "15:15", "15:30", "15:45", "16:00", "16:15", "16:30", "16:45", "17:00", "17:15", "17:30", "17:45", "18:00", "18:15", "18:30", "18:45", "19:00", "19:15", "19:30", "19:45", "20:00", "20:15", "20:30", "20:45", "21:00", "21:15", "21:30", "21:45", "22:00", "22:15", "22:30", "22:45", "23:00", "23:15", "23:30", "23:45"],
  </code></pre>
  
  <p>I need all these values to be displayed on x-axis with 15mins interval,</p>
  
  <p><a href="https://i.stack.imgur.com/tWgol.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tWgol.png" alt="enter image description here"></a></p>
  
  <pre><code>{
        startOnTick: false,
        endOnTick: false,
        min: 0,
        //type: 'datetime',
        //pointInterval:1,
  
        tickInterval: 0.25,
        max: Math.max(this.deviation.allTimeBlocks.length),
        minRange: 1000 * 60 * 60 * 60,
        type: 'datetime',
        scrollbar: {
          enabled: true
      },
      tickPixelInterval: 0.25,
        //tickmarkPlacement: 'on',
        title: {
          text: 'Time (hrs)',
  
          style: {
            color: this.Highcharts.getOptions().colors[1]
          }
        },
        categories:  ["00:00", "00:15", "00:30", "00:45", "01:00", "01:15", "01:30", "01:45", "02:00", "02:15", "02:30", "02:45", "03:00", "03:15", "03:30", "03:45", "04:00", "04:15", "04:30", "04:45", "05:00", "05:15", "05:30", "05:45", "06:00", "06:15", "06:30", "06:45", "07:00", "07:15", "07:30", "07:45", "08:00", "08:15", "08:30", "08:45", "09:00", "09:15", "09:30", "09:45", "10:00", "10:15", "10:30", "10:45", "11:00", "11:15", "11:30", "11:45", "12:00", "12:15", "12:30", "12:45", "13:00", "13:15", "13:30", "13:45", "14:00", "14:15", "14:30", "14:45", "15:00", "15:15", "15:30", "15:45", "16:00", "16:15", "16:30", "16:45", "17:00", "17:15", "17:30", "17:45", "18:00", "18:15", "18:30", "18:45", "19:00", "19:15", "19:30", "19:45", "20:00", "20:15", "20:30", "20:45", "21:00", "21:15", "21:30", "21:45", "22:00", "22:15", "22:30", "22:45", "23:00", "23:15", "23:30", "23:45"],
  
  
  
      },
  </code></pre>