javascript идущие часы с определением timezone

function current_time(){
	let bangkok_datetime_str=new Date().toLocaleString("en-US",{timeZone:"Asia/Bangkok"});
	var date=new Date(bangkok_datetime_str);
	var hours=date.getHours();
	var minutes=date.getMinutes();
	var seconds=date.getSeconds();
	if(hours<10)hours="0"+hours;
	if(minutes<10)minutes="0"+minutes;
	if(seconds<10)seconds="0"+seconds;
	document.getElementById('current_time').innerHTML='<span class="number">'+hours+'</span><span class="dot">:</span><span class="number">'+minutes+'</span><span class="dot">:</span><span class="number">'+seconds+'</span>';
}
$(document).ready(function(){
	setInterval(current_time,1000);
});