我正在寻找一个函数转换日期在一个时区到另一个。

它需要两个参数,

日期(格式为“2012/04/10 10:10:30 +0000”) 时区字符串("Asia/Jakarta")

时区字符串在http://en.wikipedia.org/wiki/Zone.tab中描述

有什么简单的方法吗?


当前回答

服务器有问题,选择gmt+0000标准时区,你可以在javascript中使用moment-timezone库来更改它

const moment = require("moment-timezone")
const dateNew = new Date()
const changeZone = moment(dateNew);
changeZone.tz("Asia/Karachi").format("ha z");
// here you can paste "your time zone string"

其他回答

提供所需的时区,例如“Asia/德黑兰”,以将当前时间更改为该时区。我用了“亚洲/首尔”。

您可以使用以下代码。如果需要更改样式。

请记住,如果你想要h:m:s格式而不是HH:MM:SS,你必须删除“函数kcwcheckT(i)”。

function kcwcheckT(i) { if (i < 10) { i = "0" + i; } return i; } function kcwt() { var d = new Date().toLocaleString("en-US", {timeZone: "Asia/Seoul"}); d = new Date(d); var h = d.getHours(); var m = d.getMinutes(); var s = d.getSeconds(); h = kcwcheckT(h); m = kcwcheckT(m); s = kcwcheckT(s); document.getElementById("kcwcurtime").innerHTML = h + ":" + m + ":" + s; var days = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"]; document.getElementById("kcwcurday").innerHTML = days[d.getDay()] } kcwt(); window.setInterval(kcwt, 1000); @import url('https://fonts.googleapis.com/css2?family=Nunito&display=swap'); .kcwsource {color:#040505;cursor: pointer;display:block;width: 100%;border: none;border-radius:5px;text-align:center;padding: 5px 10px 5px 10px;} .kcwsource p {font-family: 'Nunito', sans-serif;} .CurTbx {color:#040505;cursor: pointer;display:block;width: 100%;border: none;border-radius:5px;text-align:center;padding: 5px 10px 5px 10px;} .kcwcstyle {font-family: 'Nunito', sans-serif; font-size: 22px;display: inline-block;} .kcwcurstinf {font-family: 'Nunito', sans-serif; font-size: 18px;display: inline-block;margin: 0;} .kcwcurday {margin: 0;} .kcwcurst {margin: 0 10px 0 5px;} /*Using the css below you can make your style responsive!*/ @media (max-width: 600px){ .kcwcstyle {font-size: 14px;} .kcwcurstinf {font-size: 12px;} } <div class="kcwsource"><p>This Pen was originally developed for <a href="http://kocowafa.com" target="_blank">KOCOWAFA.com</a></p></div> <div class="CurTbx"><p class="kcwcurst kcwcstyle" id="kcwcurday"></p><p class="kcwcurst kcwcstyle" id="kcwcurtime"></p><p class="kcwcurstinf">(Seoul, Korea)</p></div>

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);
}

使用luxon库:

import { DateTime } from "luxon";

// Convert function:
const convertTz = (datetime, fromTz, toTz, format='yyyy-MM-dd HH:mm:ss') => {
  return DateTime.fromFormat(datetime, format, { zone: fromTz }).setZone(toTz).toFormat(format);
}

// Use it like this:
console.log(convertTz('2021-10-03 19:00:00', 'Europe/Lisbon', 'America/New_York'));

只需设置你想要的国家时区,你可以很容易地在html中显示它更新使用setinterval()函数后每一分钟。函数formatAMPM()管理12小时格式和AM/PM时间显示。

$(document).ready(function(){
        var pakTime = new Date().toLocaleString("en-US", {timeZone: "Asia/Karachi"});
        pakTime = new Date(pakTime);

        var libyaTime = new Date().toLocaleString("en-US", {timeZone: "Africa/Tripoli"});
        libyaTime = new Date(libyaTime);



         document.getElementById("pak").innerHTML = "PAK  "+formatAMPM(pakTime);
         document.getElementById("ly").innerHTML = "LY   " +formatAMPM(libyaTime);

        setInterval(function(today) {
            var pakTime = new Date().toLocaleString("en-US", {timeZone: "Asia/Karachi"});
            pakTime = new Date(pakTime);

            var libyaTime = new Date().toLocaleString("en-US", {timeZone: "Africa/Tripoli"});
            libyaTime = new Date(libyaTime);


           document.getElementById("pak").innerHTML = "PAK  "+formatAMPM(pakTime);
           document.getElementById("ly").innerHTML = "LY  " +formatAMPM(libyaTime);

        },10000);

         function formatAMPM(date) {
            var hours = date.getHours();
            var minutes = date.getMinutes();
            var ampm = hours >= 12 ? 'pm' : 'am';
            hours = hours % 12;
            hours = hours ? hours : 12; // the hour '0' should be '12'
            minutes = minutes < 10 ? '0'+minutes : minutes;
            var strTime = hours + ':' + minutes + ' ' + ampm;
            return strTime;
        }


    });

无耻地窃取自:http://www.techrepublic.com/article/convert-the-local-time-to-another-time-zone-with-this-javascript/6016329

/** 
 * function to calculate local time
 * in a different city
 * given the city's UTC offset
 */
function calcTime(city, offset) {

    // create Date object for current location
    var d = new Date();
   
    // get UTC time in msec
    var utc = d.getTime();
   
    // create new Date object for different city
    // using supplied offset
    var nd = new Date(utc + (3600000*offset));
   
    // return time as a string
    return "The local time in " + city + " is " + nd.toLocaleString();
}

这个函数通过提供城市/国家的名称和偏移值来计算时区值