Important Information

This year Daylight Saving Time (DST) extends by approximately four weeks. In compliance with this provision in the Energy Policy Act of 2005, DST dates in the United States and Canada will start three weeks earlier (2:00 A.M. on the second Sunday in March) and will end one week later (2:00 A.M. on the first Sunday in November).

Problems because of this

Because computer systems are not aware of this change, if nothing is done, the time on the computer systems will be off by one hour during this extended daylight savings time(DST). The biggest impact would be be to those who use there Calendar for appointment and meetings. During the extened DST time, your appointments would also be off by an hour.

Step 1. Our Initial Recommendation

If you are a calendar user, here are two steps we recommend you follow.

a) Print a copy of your calendar for the weeks of March 11th, 18th, 25th and October 28th.

b) Go through your calendar entries between March 11th 2007 and April 1st 2007 and also between October 28th and November 4th and add your appointment times to your calendar entry subject line. That way, if an entry is off because of the DST changes you will know for sure the start and end times of that entry.

Step 2. Patching your computer

Files

A) Install this patch to automatically update your operating system. This patch can only be installed on a computer running Windows XP with Service Pack 2. Download the file and follow these instructions
Windows XP SP2 Patch: [Download]

B) Use this time zone editing utility to manually change the DST dates on you computer. This is to only be used if you are not running Windows XP Service Pack 2. Download the file below for your operating system and then follow these instructions.
Windows 2000/NT: [Download]
Windows 98: [Download]

C) After the DST is updated or patched, you need to run this tool to update your calendar entries that happen in the 4 week time frame of the DST change. Download the file below and follow these instructions.
Calendar Update Tool: [Download]

Step 3. Instructions

Installing the DST patch for XP

• Save and close all applications you were working on
• Find the XPSP2-DSTPatch.exe file you just downloaded
• Double-click on XPSP2-DSTPatch.exe
• Follow the on screen instructions
• If you get the following error, that just means the patch is already installed. However, if get any other error message, please contact us.

Image 3a

Manually editing the time zone setting

• Save and close all applications you were working on
• Find the tzedit program you just downloaded.
• Double-click on tzedit
• From the box that opens up, click on the 'Edit' button on the right
• You will see the following screen

Image 3b

• In the 'Automatically set Daylight Savings Time' section, change the Start Day and Last Day to the following
• Start Day: Second Sunday of March 2:00AM
• Last Day: First Sunday of November 2:00AM
• It should look like this

Image 3c

• Then Click 'Ok', then 'Close'
• Now duoble-click on the time in the lower right corner
• Click on the Time Zone tab
• Uncheck the 'Automatically adjust clock for daylight savings changes'
• Click 'Apply'
• Re-check the 'Automatically adjust clock for daylight savings changes'
• Click 'Ok'

Updating your Calendar

• Save and close all applications you were working on
• Find the tzmove program you just downloaded.
• Double-click on tzmove
• Accept the License Terms and click 'Continue'
• On the next screen, the defaults are good, so just click 'Ok'
• It will then scan you calendar looking for entries in the new DST zone.
• After it finds some, the next screen will display how many entries are affected. Click 'Ok' to update those entries.
• When finished, click 'Ok'