DST Reminder

DST Reminder

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Daylight Savings Time for 2008 will end this weekend on Sunday, November 2nd.  This is a reminder to those who have not applied their DST patches to the SBS 2003 network to do so as soon as possible.  Common issues that are fixed by these patches include:

1.      Calendar items and appointments in Outlook are off by an hour

2.      Timestamps in OWA are off by an hour

3.      Time skews between patched and un-patched machines

4.      Date and Time fields are off by an hour in Sharepoint

5.      SQL Server notifications are delayed

For the full list of updates that are applicable to the SBS 2003 environment please visit:

http://blogs.technet.com/sbs/archive/2007/02/13/extended-daylight-saving-time-sbs-2003-and-you.aspx

There are several methods to check for these updates, including:

1.      Use the official Microsoft Daylight Savings Time Help Center at http://support.microsoft.com/gp/cp_dst

2.      Run the SBS 2003 Best Practices Analyzer from http://www.microsoft.com/downloads/details.aspx?FamilyId=3874527A-DE19-49BB-800F-352F3B6F2922&displaylang=en

3.      To check the OS only (client or server) run the "w32tm /tz" command.

If you have any further questions on DST and the DST changes please see: http://support.microsoft.com/gp/cp_dst

How to check the timezone setting using "w32tm /tz":

The output will look like this for the Central timezone on a patched machine:
Time zone: Current:TIME_ZONE_ID_DAYLIGHT Bias: 360min (UTC=LocalTime+Bias)
[Standard Name:"Central Standard Time" Bias:0min Date:(M:11 D:1 DoW:0)]
[Daylight Name:"Central Daylight Time" Bias:-60min Date:(M:3 D:2 DoW:0)]

What you want to look for is M:11, this translates to “Month 11: November” for
start of Standard Time. (M:3 which is “Month 3: March” for start of Daylight
Standard Time.)

An unpatched machine will show the following:
Time zone: Current:TIME_ZONE_ID_STANDARD Bias: 360min (UTC=LocalTime+Bias)
[Standard Name:"Central Standard Time" Bias:0min Date:(M:10 D:5 DoW:0)]
[Daylight Name:"Central Daylight Time" Bias:-60min Date:(M:4 D:1 DoW:0)]

A patched machine that does not have "Automatically adjust clock for daylight saving
changes" set will show:
Time zone: Current:TIME_ZONE_ID_DAYLIGHT Bias: 360min (UTC=LocalTime+Bias)
[Standard Name:"Central Standard Time" Bias:0min Date:(M:11 D:1 DoW:0)]
[Daylight Name:"Central Standard Time" Bias:0min Date:(M:11 D:1 DoW:0)]

 

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