title: Highcharts: getting runtime durations on the yAxis
body: <p>I run daily a job. Today, that job takes 1:45:09 hrs. I have a lot of such durations for that job from the past weeks and I want to be able to show that graphically using a simple column chart. On the Y axis I want duration ticks from 0:00:00 - 5:00:00 or so that I can easily compare the runtimes from the past weeks and see if the job is gradually taking longer and longer.</p>
  <p>I have read and implemented a lot of answers from StackOverflow and other internet resources but none of them fit my purpose. When using unix timestamps (since 1970, etc) I get columns that are all of the same hight and Y-axis ticks in years instead of hours from 1970 to now.</p>
  <p>Another option was to just calculate the minutes or seconds. Then the difference become appearant, but instead of time elements in the Y axis and tooltips I get integers.</p>
  <p>Can someone show me how to achieve my goal in a fiddle? The question looks common enough to me for any monitoring software.</p>
  <p>-- EDIT --
  Here is a Photoshop sample of what I am trying to achieve:
  <a href="https://i.stack.imgur.com/wFtzn.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/wFtzn.png" alt="Time taken of backups" /></a>
  On the Y-axis: a time scale. In the tooltip: date, objectname and time taken.
  -- END EDIT --</p>
  <p>BTW, I have no chart type preference. The usual column charts just seem to fit the purpose.</p>
  <p>Thanks for any help!</p>