[英]Given a date/time and timezone, how do you convert that into a UTC timestamp?
[英]Momentjs: How to convert date/time of one timezone to UTC date/time
我有一個帶時區的日期/時間,想將其轉換為 UTC
const date = '2019-04-10T20:30:00Z';
const zone = 'Asia/Kuala_Lumpur';
const utcDate = moment(date).tz(zone).utc().format();
console.log('UTC Date : ', utcDate);
我的日期變量是 UTC 的標准格式嗎? 如何將這個時區投射到另一個時區?
UTC 時區由后綴“Z”表示,因此您需要刪除"Z"
並使用moment.tz(..., String)
而不是moment().tz(String)
因為第一個創建一個帶有時間的時刻zone 和第二個用於更改現有時刻的時區:
const date = '2019-04-10T20:30:00'; const zone = 'Asia/Kuala_Lumpur'; const utcDate = moment.tz(date, zone).utc().format(); console.log('UTC Date : ', utcDate);
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/moment-timezone/0.5.23/moment-timezone-with-data.min.js"></script>
function calcTime(city, offset) {
// create Date object for current location
var d = new Date();
// convert to msec
// add local time zone offset
// get UTC time in msec
var utc = d.getTime() + (d.getTimezoneOffset() * 60000);
// 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();
}
您可以像下面的代碼那樣執行此操作:
// your inputs
var date = '2019-04-10T20:30:00Z';
var desiredFormate = "MM/DD/YYYY h:mm:ss A"; // must match the input
var zone = 'Asia/Kuala_Lumpur';
// construct a moment object
var m = moment.tz(date , desiredFormate, zone);
// convert it to utc
m.utc();
// format it for output
var s = m.format(fmt) // result: 2017-08-31T08:45:00+06:00
您可以使用moment.js文檔:
moment().format('MMMM Do YYYY, h:mm:ss a'); // April 10th 2019, 3:29:36 pm
moment().format('dddd'); // Wednesday
moment().format("MMM Do YY"); // Apr 10th 19
moment().format('YYYY [escaped] YYYY'); // 2019 escaped 2019
moment().format();
const date = new Date(); console.log(date); const zone = 'Asia/Karachi'; const utcDate = moment.tz(date, zone).utc().format(); console.log('UTC Date : ', utcDate);
<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/moment-timezone/0.5.23/moment-timezone-with-data.min.js"></script>
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