Kareo | Help and Support

Changes to the Daylight Saving Time Calendar

The U.S. government has changed the Daylight Saving Time (DST) calendar as part of new regulations related to energy policy that became effective in 2007.  Prior to 2007, Daylight Saving Time started for most of the U.S. at 2 a.m. on the first Sunday of April and reverted back to Standard Time at 2 a.m. on the last Sunday of October.  Starting in 2007, Daylight Saving Time has been extended by one month and starts for most of the U.S. at 2 a.m. on the Second Sunday in March (3/11/2007) and reverts back to Standard Time 2 a.m. on the First Sunday of November (11/4/2007).

Microsoft Windows Patch to Support the New Daylight Saving Time Calendar

Microsoft released an optional patch in late November 2006 that updates your Windows clock to follow the new Daylight Saving Time (DST) calendar that become effective in 2007.  But unfortunately, since Microsoft made this important patch optional, your computer may not have been updated even if you have turned on automatic updates using the Microsoft Windows Update service.  As a result, your computer and other computers in your organization may not be updated with the new Daylight Saving Time (DST) calendar for 2007. Kareo highly recommends that you use the Microsoft Links at the bottom of this document to update all your systems.

If you use Kareo's appointment scheduling features, your appointment times may be incorrect for the dates 3/10/2007-3/31/2007 and 10/28/2007-11/4/2007. Please read the complete document for a full review of the issue.

More Information about the Microsoft Patch

• More information about the Microsoft patch for Windows XP
• More information about the Microsoft patch for other versions of Windows
• More information on this issue.

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by KareoSupport to Client Software