Update: Fixed in Outlook 2010 SP1
This bug affects Outlook 2010 only and only under all of the following conditions:
- You use Outlook 2010's dual time zone feature
- One time zone uses DST, the other time zone does not use DST
- You swap time zones
When you use Outlook 2010’s dual time zone feature and one time zone uses DST and the other does not, when you swap zones the Use DST checkbox in Window’s Date and Time applet may be unchecked when the time zone that uses DST is active. Because Outlook 2010 doesn’t display the Use DST checkbox, you won’t know this unless you happen to notice the computer’s time is off an hour.
Until Microsoft fixes this, you’ll need to open the Date and Time applet in the Control Panel and enable Use DST after swapping time zones.
More Information
Time Zone Problems continue (Answers forum post where this bug was first identified)
Outlook 2010 Time Zone problems (Answers forum – follow up discussion)
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Last reviewed on Sep 28, 2011
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