Can't change x axis time format from AM / PM to 24 hour clock

[kristianskogberg]

Hi, first thanks for the plugin it's really good. My only issue is that I can't change the x axis time format from the AM / PM model to the 24 hour clock. I have tried bunch of things such as this:

  x: {
    type: "realtime",
    realtime: {
      time: {
        displayFormats: {
          hour: "HH:mm",
          second: "HH:mm:ss",
        },
      },

but it doesnt change the time format. Any ideas?