score:1

Accepted answer

You can adjust the date format in dataLabels setting to show the time instead of date like this

   dataLabels: {
     allowOverlap: false,
     format:
       '<span style="color:{point.color}">● </span><span style="font- 
       weight: bold;" > ' +
       "{point.x:%H:%M:%S}</span><br/>{point.label}"
   }

DateFormat reference: https://api.highcharts.com/class-reference/Highcharts.Time#dateFormat


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