Microsoft Daylight Saving Time & Time Zone Blog

This is the blog maintained by staff at Microsoft to provide general information, announcements and provide answers to Frequently Asked Questions (FAQs) related to daylight saving time (DST) and time zone (TZ) changes around the world. * Important Notice

Venezuela Time Zone Update Hotfix for the Windows OS is Available

Venezuela Time Zone Update Hotfix for the Windows OS is Available

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The government of Venezuela has announced a change to the time zone for the country. To date, Venezuela observed AST. The new time zone change will begin September 24, 2007, when clocks will move backwards 30 minutes, from UTC-4:00 GMT to UTC-4:30. This change begins at 11:59:59 PM local time on September 24. Clocks should be moved back to 11:30:00 PM rather than advancing to 12:00:00 AM (midnight.)

Microsoft recommends that customers downloading this update should maintain their current time zone settings and confirm the start date of the time zone change in the Bolivarian Republic of Venezuela before using the new time zone.

For more information, please see Microsoft Knowledge Base article 938977.

The KB is now live and you can request the hotfix by going to http://support.microsoft.com/gp/CUHotFix_LandingPage_Request.

Details:  The name of the new time zone is Venezuela Standard Time, and the display name for this time zone is (GMT -04:30) Caracas.

The government of the Bolivarian Republic of Venezuela has announced a change to the time zone for the country, which to date has typically observed South America Western Standard Time. According to current official reports, the new time zone change is currently scheduled to begin September 24, 2007, when clocks will move backwards 30 minutes, from UTC -4:00 to UTC-4:30. This change begins at 11:59:59 PM local time on September 24, 2007. Clocks should be moved back to 11:30:00 PM rather than advancing to 12:00:00 AM (midnight).

Microsoft recommends that customers downloading this update should maintain their current time zone settings and confirm the start date of the time zone change in the Bolivarian Republic of Venezuela before using the new time zone. End users may install this update and the resulting new time zone may remain on the time zone with a display name of (GMT-04:00) La Paz, also known as SA Western Standard Time, until manually making a transition to Venezuela Standard Time.

Installing and using this new time zone prior to the official time zone change will impact the date and time on your computer (see below).

For more information about how to manually change your time zone, please see the following: