set time zone in browser code example
Example 1: get browser timezone
console.log(new Date().toTimeString().slice(9));
console.log(Intl.DateTimeFormat().resolvedOptions().timeZone);
console.log(new Date().getTimezoneOffset() / -60);
Example 2: time zone browser javascript
fetch("https://worldtimeapi.org/api/ip")
.then(response => response.json())
.then(data => console.log(data.timezone,data.datetime,data.dst));