从我的浏览器/服务器获取时区,以插入angular2 highcharts

timezoneOffset 从Highcharts api开始,我现在在gmt+2,所以我将其设置为-2*60,但当我们在10月份更改时间时,我的设置将不再正常工作,因此我决定使用我的浏览器或伺服时间。我知道我们可以从api中获取gettimezoneOffset函数 getTimezoneOffset: Function pb是我用typescript和Angular 4设置的,我如何才能以优雅的方式进行设置?提前感谢

 constructor(public userService3: UserService3) {

     const Highcharts = require('highcharts');

    Highcharts.setOptions({
  global: {
    timezoneOffset: -2 * 60
   }
});
           this.options = {
            title : { text : '' },
            chart: {  type: 'area'},
            legend: { enabled: false },
            credits: { enabled: false },
            xAxis: { type: 'datetime',
                    startOnTick: false,
                    endOnTick: false,
                    tickInterval: 36e5 * 2, // two hours
                    },
            yAxis: { min: 0,
              max: 100 },
            plotOptions: {
              series: {
                  color: '#648e59',
                  fillOpacity: 0.8,
                  fillColor: '#648e59',
                  pointInterval: 36e5 * 2 // two hours
                      }
            },
            series: [{
              name: 'Someone1',
              data: [],
            }]
        };
    }
   saveInstance(chartInstance) {
    this.chart = chartInstance;
     console.log(chartInstance);
}

    public ngOnInit () {
    this.dataSubscription = this.userService3.getData().subscribe((data) 
=> {
      this.options.series[0].data = data.data.operating_details;
      console.log(data);
   });
}
    ngOnDestroy() {
      if (this.dataSubscription){
this.dataSubscription.unsubscribe();
}
    }

   <chart [options]="options" (load)="saveInstance($event.context)"> 
   </chart>