chartjs.config.ts

const chartConfig = (
  parser,
  dateFormatter
) => ({
  responsive: true,
  maintainAspectRatio: false,
  scales: {
    xAxes: [
      {
        type: 'time',
        ticks: {
          maxTicksLimit: 4,
          autoSkip: true
        },
        time: {
          displayFormats: {
            day: 'ddd',
            hour: 'ddd H:mm'
          },
          parser,
          tooltipFormat: dateFormatter
        }
      }
    ],
    yAxes: [
      {
        ticks: {
          beginAtZero: true
        }
      }
    ]
  },
  hover: {
    intersect: false
  },
  tooltips: {
    intersect: false
  }
})

const parseDate = (datetime, tz = moment.tz.guess()) =>
  moment.unix(datetime).tz(tz)