javascript set date to timezone
var d = new Date("2020-04-13T00:00:00.000+08:00"); /* midnight in China on April 13th */
d.toLocaleString('en-US', { timeZone: 'America/New_York' });
//=> "4/12/2020, 12:00:00 PM"
// (midnight in China on April 13th is noon in New York on April 12th)javascript get specific timezone
function changeTimezone(date, ianatz) {
// suppose the date is 12:00 UTC
var invdate = new Date(date.toLocaleString('en-US', {
timeZone: ianatz
}));
// then invdate will be 07:00 in Toronto
// and the diff is 5 hours
var diff = date.getTime() - invdate.getTime();
// so 12:00 in Toronto is 17:00 UTC
return new Date(date.getTime() - diff); // needs to substract
}
// E.g.
var here = new Date();
var there = changeTimezone(here, "America/Toronto");
console.log(`Here: ${here.toString()}nToronto: ${there.toString()}`);
Run code snippetHide resultsjavascript date timezone
// this example takes 2 seconds to run
const start = Date.now();
console.log('starting timer...');
// expected output: starting timer...
setTimeout(() => {
const millis = Date.now() - start;
console.log(`seconds elapsed = ${Math.floor(millis/1000)}`);
// expected output : seconds elapsed = 2
}, 2000);Copyright © 2021 Codeinu
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