Why is highcharts clipping the label?

Question

JavaScript

There is a chart whose xAxis has the datetime type, here is its config:

private get xAxisConfig(): any {
    return {
      type: 'datetime',
      tickInterval: 3600 * 1000,
      startOnTick: true,
      endOnTick: true,
      dateTimeLabelFormats: {
        second: '%H:%M',
        minute: '%H:%M',
        hour: '%H:%M',
        day: '%H:%M',
        week: '%H:%M',
        month: '%H:%M',
        year: '%H:%M'
      },
      title: {
        text: 'Date'
      }
    }
  }

but for some reason it rounds minutes down. That is, if the first incoming time is 01:55, then the chart draws the first label 01:00. I need that if the first element is 01:55 then the first one was 01:55. Can anyone help?