Availability

JavaScript 1.0; JScript 1.0; ECMAScript v1

Synopsis

date.getTimezoneOffset(  )

Returns

The difference, in minutes, between Greenwich Mean Time (GMT) and local time.

Description

getTimezoneOffset( ) returns the number of minutes difference between the GMT or UTC time and the local time. In effect, this function tells you what time zone the JavaScript code is running in and whether or not daylight savings time is (or would be) in effect at the specified date.

The return value is measured in minutes, rather than hours, because some countries have time zones that are not at even one-hour intervals.