JS otrzymuje nazwę strefy czasowej
console.log(Intl.DateTimeFormat().resolvedOptions().timeZone)
Dangerous Dove
console.log(Intl.DateTimeFormat().resolvedOptions().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)const timezone = Intl.DateTimeFormat().resolvedOptions().timeZone;
console.log(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 resultsIntl.DateTimeFormat().resolvedOptions().timeZone
document.getElementById("time").innerHTML = Date().slice(Date().indexOf("(")+1,Date().lastIndexOf(")"));