At the moment ("winter" period), it works as follows:
- my system time zone is Europe/Moscow. It is UTC+4. We do not have
DST anymore.
- Outlook thinks my time zone is Asia/Muscat. It seems to be similar
UTC+4, but Outlook thinks it is not!
- When someone sends me a meeting request, I see it with one hour
offset (it is one hour later).
- If I send someone a meeting request and select Europe/Moscow time
zone manually, it appears in my calendar one hour earlier.
I am pretty sure everything is fine on Exchange side, we have all
time zone updates installed.
Anyone else having similar problems? Is there a way to fix?
Okay, there are a few things to consider. The first most horrible thing is that Outlook 2010 is known to have tons of problems with time zones (I went out reading thinking I'd come across one simple fix for this and found more problems than there are fixes).
There are three places where the time for something in an email/meeting/etc can become borked:
Operating system time, email server and email reader...
I assume it's happening somewhere within Outlook though. I think that is probably because of the more recent removal of DST in Russia.
The first thing you'll want to do is make sure that you've applied Service Pack 1 to Office 2010.
The second is to consider applying this tool from Microsoft:
http://www.microsoft.com/en-us/download/details.aspx?id=17291
It's meant for other purposes but should update the rules of time zones within your bottle.
You can try disabling the use of DST within your Outlook bottle (note that I haven't tried this so your mileage may vary):
...Being that the situation you describe sounds like the machines
are using the DST rules, I would begin by making sure that DST is
definitely being disabled.
Go into Regedit:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\TimeZoneInformation
Add a new DWORD value with the name "DisableAutoDaylightTimeSet"
--Set its value to "1". Which equates to "Disabled".
It would be highly helpful if you posted back anything that did or did not help you for future users. Here in the states we have very unfortunately not gotten rid of DST but the rules for it keep changing, I'm certain others will encounter this issue on a semi regular basis.
Articles for a good read on this issue:
http://social.technet.microsoft.com/Forums/en-US/winserverGP/thread/3e5adc56-7580-497e-a972-81d3b25a3e57
http://www.slipstick.com/outlook/calendar/appointments-and-time-zones/
http://support.microsoft.com/kb/982987
http://support.microsoft.com/kb/2507003
