JAVASCRIPT

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)

get timezone javascript

const timezone = Intl.DateTimeFormat().resolvedOptions().timeZone;
console.log(timezone);

get current time in different timezone javascript

// current datetime string in America/Chicago timezone
let chicago_datetime_str = new Date().toLocaleString("en-US", { timeZone: "America/Chicago" });

// create new Date object
let date_chicago = new Date(chicago_datetime_str);

how to see my timezone using js

document.getElementById("time").innerHTML = Date().slice(Date().indexOf("(")+1,Date().lastIndexOf(")"));

javascript 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);

timezone using javascript

' check time zone
DateDiff("s", "01/01/1970 00:00:00", Now())