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							- 'use strict';
 
- var callBind = require('call-bind');
 
- var I402 = typeof Intl === 'undefined' ? null : Intl;
 
- var DateTimeFormat = I402 && I402.DateTimeFormat;
 
- var resolvedOptions = DateTimeFormat && callBind(DateTimeFormat.prototype.resolvedOptions);
 
- // https://262.ecma-international.org/15.0/#sec-systemtimezoneidentifier
 
- module.exports = function SystemTimeZoneIdentifier() {
 
- 	if (DateTimeFormat && resolvedOptions) {
 
- 		return resolvedOptions(new DateTimeFormat()).timeZone; // steps 2 - 3
 
- 	}
 
- 	return 'UTC'; // step 1
 
- };
 
 
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