如何使用highcharts在饼图标签中正确显示时间数据？

Highcharts.chart('container', {
    chart: {
        type: 'pie'
    },
    title: {
        text: '时间数据饼图示例'
    },
    tooltip: {
        pointFormat: '{series.name}: <b>{point.percentage:.1f}%</b>'
    },
    plotOptions: {
        pie: {
            allowPointSelect: true,
            cursor: 'pointer',
            dataLabels: {
                enabled: true,
                format: '<b>{point.name}</b>: {point.percentage:.1f} %',
                style: {
                    color: (Highcharts.theme && Highcharts.theme.contrastTextColor) || 'black'
                }
            }
        }
    },
    series: [{
        name: '时间数据',
        colorByPoint: true,
        data: [{
            name: '2023-01-01',
            y: 50,
            label: '2023-01-01T12:00:00Z'
        }, {
            name: '2023-02-01',
            y: 30,
            label: '2023-02-01T12:00:00Z'
        }, {
            name: '2023-03-01',
            y: 20,
            label: '2023-03-01T12:00:00Z'
        }]
    }]
});