好了，找到了!

我使用的是timezone-js。这是代码:

var dt = new timezoneJS.Date("2012/04/10 10:10:30 +0000", 'Europe/London');
dt.setTimezone("Asia/Jakarta");

console.debug(dt); //return formatted date-time in asia/jakarta

对于moment.js用户，现在可以使用moment-timezone。使用它，你的函数看起来像这样:

function toTimeZone(time, zone) {
    var format = 'YYYY/MM/DD HH:mm:ss ZZ';
    return moment(time, format).tz(zone).format(format);
}

我最近在Typescript中做了这个:

// fromTimezone example : Europe/Paris, toTimezone example: Europe/London
private calcTime( fromTimezone: string, toTimezone: string, dateFromTimezone: Date ): Date {
  const dateToGetOffset = new Date( 2018, 5, 1, 12 );

  const fromTimeString = dateToGetOffset.toLocaleTimeString( "en-UK", { timeZone: fromTimezone, hour12: false } );
  const toTimeString = dateToGetOffset.toLocaleTimeString( "en-UK", { timeZone: toTimezone, hour12: false } );

  const fromTimeHours: number = parseInt( fromTimeString.substr( 0, 2 ), 10 );
  const toTimeHours: number = parseInt( toTimeString.substr( 0, 2 ), 10 );

  const offset: number = fromTimeHours - toTimeHours;

  // convert to msec
  // add local time zone offset
  // get UTC time in msec
  const dateFromTimezoneUTC = Date.UTC( dateFromTimezone.getUTCFullYear(),
    dateFromTimezone.getUTCMonth(),
    dateFromTimezone.getUTCDate(),
    dateFromTimezone.getUTCHours(),
    dateFromTimezone.getUTCMinutes(),
    dateFromTimezone.getUTCSeconds(),
  );

  // create new Date object for different city
  // using supplied offset
  const dateUTC = new Date( dateFromTimezoneUTC + ( 3600000 * offset ) );

  // return time as a string
  return dateUTC;
}

我使用“en-UK”格式，因为它是一个简单的。可能是"en-US"之类的。

如果第一个参数是本地时区，第二个参数是目标时区，它将返回一个具有正确偏移量的Date对象。

下面是一行代码:

function convertTZ(date, tzString) { return new Date((typeof date === "string" ? new Date(date) : date).toLocaleString("en-US", {timeZone: tzString})); } // usage: Asia/Jakarta is GMT+7 convertTZ("2012/04/20 10:10:30 +0000", "Asia/Jakarta") // Tue Apr 20 2012 17:10:30 GMT+0700 (Western Indonesia Time) // Resulting value is regular Date() object const convertedDate = convertTZ("2012/04/20 10:10:30 +0000", "Asia/Jakarta") convertedDate.getHours(); // 17 // Bonus: You can also put Date object to first arg const date = new Date() convertTZ(date, "Asia/Jakarta") // current date-time in jakarta.

这是MDN参考。

注意:上面的函数依赖于解析toLocaleString结果，这是一个以en-US语言环境格式化的日期字符串，例如。“4/20/2012，下午5:10:30”。每个浏览器可能不接受en-US格式的日期字符串到它的日期构造函数，它可能返回意想不到的结果(它可能忽略夏令时)。

目前所有现代浏览器都接受这种格式并正确计算夏令时，它可能不适用于旧浏览器和/或外来浏览器。

旁注:如果现代浏览器有tolocedate，那就太好了 函数，所以我们不需要使用这个俗套的方法。

This is UTC date; converting UTC to IST timezone; let sampleArray = [ { date: "2022-12-22T19:16:26.803" }, { date: "2022-12-22T19:16:26.77" }, { date: "2022-12-22T19:16:26.737" }, { date: "2022-12-22T19:16:26.72" } ]; // Get all the results whose boolresult is 'true' // solution 1 sampleArray.map((element) => { let utcDate = new Date(element.date).getTime(); let dateIST = new Date(utcDate); dateIST.setHours(dateIST.getHours() + 5); dateIST.setMinutes(dateIST.getMinutes() + 30); element.date = dateIST; }); console.log("Result ==>>", sampleArray); // solution 2 sampleArray.map((element) => { element.date = new Date(element.date).toLocaleString("en-US", { timeZone: "Asia/Kolkata" }); }); console.log("Result 2==>>", sampleArray);

这是我的代码，它工作得很完美，你可以试试下面的演示:

$(document).ready(function() { //EST setInterval( function() { var estTime = new Date(); var currentDateTimeCentralTimeZone = new Date(estTime.toLocaleString('en-US', { timeZone: 'America/Chicago' })); var seconds = currentDateTimeCentralTimeZone.getSeconds(); var minutes = currentDateTimeCentralTimeZone.getMinutes(); var hours = currentDateTimeCentralTimeZone.getHours()+1;//new Date().getHours(); var am_pm = currentDateTimeCentralTimeZone.getHours() >= 12 ? "PM" : "AM"; if (hours < 10){ hours = "0" + hours; } if (minutes < 10){ minutes = "0" + minutes; } if (seconds < 10){ seconds = "0" + seconds; } var mid='PM'; if(hours==0){ //At 00 hours we need to show 12 am hours=12; } else if(hours>12) { hours=hours%12; mid='AM'; } var x3 = hours+':'+minutes+':'+seconds +' '+am_pm // Add a leading zero to seconds value $("#sec").html(x3); },1000); }); <!DOCTYPE html> <html> <head> <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script> </head> <body> <p class="date_time"><strong id="sec"></strong></p> </body> </html>