getTimezone.js

getTimezone.js

import { utcToZonedTime, format as formatTimeZone } from 'date-fns-tz';

//'America/Los_Angeles'
// const utcString = '2019-09-25T12:00:00.000Z';

function getTimeZoneText(utcString) {
	try {
		const timeZone = Intl.DateTimeFormat().resolvedOptions().timeZone;
		if (Intl) {
			const zoneDateObj = utcToZonedTime(utcString, timeZone);
			const timeZoneString = formatTimeZone(zoneDateObj, 'zzzz', { timeZone });
			return timeZoneString
				.split(' ')
				.map(elem => {
					return elem.slice(0, 1);
				})
				.join('');
		}
	} catch (e) {
		console.warn(e);
		return '';
	}
	return '';
}

export default getTimeZoneText;