Daylight Saving Time changes

Published: June 16, 2006 | Updated: September 18, 2007

Find details on how to prepare for the Daylight Saving Time (DST) changes coming up in 2007. Indiana residents, get instructions on how to update your time zone settings for the move to DST that happened in April 2006.

August 2007 cumulative time zone update for Microsoft Windows operating systems

The update described in this article changes the time zone data to account for DST changes in several countries. This update also includes other DST–related changes, time zone-related changes, and settings-related changes.

Preparing for Daylight Saving Time changes in 2007

Starting in the spring of 2007, DST start and end dates for the United States have transitioned to comply with the Energy Policy Act of 2005. Find details on how to support the DST changes on Microsoft Windows operating systems.

Preparing Microsoft Outlook for Daylight Saving Time changes in 2007

In August 2005, the United States Congress increased the number of weeks for observing DST, beginning in 2007. The Canadian government plans to match the change; the Mexican government has not decided. These changes will have an impact on calendar items created in Outlook.

Indiana residents: Updating your time zone setting

On April 2, 2006, the entire state of Indiana began observing DST. In order to maintain the correct time on your computer, server, or mobile device, you must update the Windows time zone setting to reflect either the Eastern Time Zone or the Central Time Zone.


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