如何获取时区

我正在努力争取时间学习回声技能。我知道时间,但它在错误的时区。我如何使时间适应时区?

var d = new Date(); 
var dateHour = d.getHours();
var dateMinutes = d.getMinutes();

var nonTime = dateHour + ":" + dateMinutes;
var dateTime = nonTime

var speechOutput = "This is a test " + today + ' ' + dateTime ;
this.emit(':tellWithCard', speechOutput, today); },

我发布这条消息的时间是10:16,下面是我的日志显示的内容:

   "outputSpeech": {
  "type": "SSML",
  "ssml": "<speak> This is a test September 5, 2017 3:16 </speak>"