title: Chartjs annotations-plugin: Can I add multiple vertical lines to identically named x-axis labels?
body: <p>I have a chartjs graph with an x-axis consisting of the hours of the past three days. Because it is 3 days, each hour appears in the x-axis 3 times. I want to draw vertical lines at each 12:00am, but I am not sure how to differentiate the first 12:00am with the second and third.</p>
  <pre><code>annotation: {                  
        annotations: [{
              type: 'line',
              id: 'vLine',
              mode: 'vertical',
              display: true,
              scaleID: 'x-axis-0',
              value: '12:00am',
              borderWidth: 1,
              borderColor: 'gray',
              label: {
                      enabled: true,
                      position: &quot;center&quot;,
                      content: 'day bar'
              }
      }]
  </code></pre>
  <p>}</p>
  <p><a href="https://i.stack.imgur.com/9wtsK.png" rel="nofollow noreferrer">Here is what the graph currently looks like</a></p>
  <p>Would each time need a unique label, or is it possible to differentiate between the 3 identical x-axis times without changing their x-axis labels?</p>