js get users timezone code example

Example 1: client timezone offset in JavaScript

var clientTimezoneOffset = new Date().getTimezoneOffset()/60;//offset in hours

Example 2: how to see my timezone using js

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

Example 3: get user time using timezone javascript

function calcTime(city, offset) {
    // create Date object for current location
    var d = new Date();

    // convert to msec
    // subtract 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 for city"+ city +" is "+ nd.toLocaleString();
}

alert(calcTime('Bombay', '+5.5'));