Windows 7 TimeZone keeps changing to Pacific Time automatically
Hi Guys
I have stumbled across an issue we are having. All of our Windows 7 domain joined machines have suddenly had their time zones changed to Pacific Time from GMT/UTC. We run virtual desktops, and they are always on except for maintenance and that hasn't happened recently. We can go in and change the Time zone and it works fine, but sporadically if will then change back to the Pacific Time time zone.
Here are the things Ive checked already:-
1) My PDC syncs with uk.ntp.pool.org and has correct TZ and time/date
2) All other DC's sync with the PDC and have correct Time and Date and TimeZone info
3) As they're virtual machines, they are configured NOT to sync time with their hosts and Ive confirmed this
4) The BIOS time setings are spot on and as its virtual its not a battery issue
5) All network kit the devices are attached to are correctly configured to UTC
6) I don't use DHCP settings for NTP server details
I've even followed various links to try and configure the settings by GPO/Startup Script but even though the GPO applies it doesn't change the settings or update the registry.
I'm wondering if anyone has encountered this recently as we have performed Windows updates quite recently, but no other major changes.
Thanks
I have stumbled across an issue we are having. All of our Windows 7 domain joined machines have suddenly had their time zones changed to Pacific Time from GMT/UTC. We run virtual desktops, and they are always on except for maintenance and that hasn't happened recently. We can go in and change the Time zone and it works fine, but sporadically if will then change back to the Pacific Time time zone.
Here are the things Ive checked already:-
1) My PDC syncs with uk.ntp.pool.org and has correct TZ and time/date
2) All other DC's sync with the PDC and have correct Time and Date and TimeZone info
3) As they're virtual machines, they are configured NOT to sync time with their hosts and Ive confirmed this
4) The BIOS time setings are spot on and as its virtual its not a battery issue
5) All network kit the devices are attached to are correctly configured to UTC
6) I don't use DHCP settings for NTP server details
I've even followed various links to try and configure the settings by GPO/Startup Script but even though the GPO applies it doesn't change the settings or update the registry.
I'm wondering if anyone has encountered this recently as we have performed Windows updates quite recently, but no other major changes.
Thanks
Last Comment
Are you able to verify from a workstation what the time source is?
“w32tm /query /source”.
“w32tm /query /source”.
are you saying that the "Time Zone" is changing from the configured "GMT (UTC+0) to PDT(GMT-8) ?
Check your group policies.
Check your group policies.
ASKER
Hi the w32tm query from a workstation reports back as being a DC within my domain and yes you're correct that it does seem to be the time zone that's changing and not the actual time.
From my investigations there isn't a direct GPO that can configure the time zone setting and that it has to be done via a reg entry or a script which, as this has not been a problem before I'd struggle to think of it just happening now?
If I'm wrong though and there is a GPO setting, do you have any ideas where it may be.
From my investigations there isn't a direct GPO that can configure the time zone setting and that it has to be done via a reg entry or a script which, as this has not been a problem before I'd struggle to think of it just happening now?
If I'm wrong though and there is a GPO setting, do you have any ideas where it may be.
Might need to look at an event log on a client to try and gather some clues. This type of issue is quite indicative of Windows-update installation causing bugs... But I'm curious to know what a client PC is writing for events when the TZ changes.
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Did you check to see if the "Allow time zone redirection" policy is enabled via GPO? The default behavior is to not allow it, so if the policy isn't configured, the TZ won't be redirected. So, it is probably enabled.
To check that setting in group policy, browse to:
Computer Configuration>Policies>Adm
Disable the “Allow time zone redirection" policy to prevent TZ redirection. Enable the policy to allow TZ redirection.
To check that setting in group policy, browse to:
Computer Configuration>Policies>Adm
Disable the “Allow time zone redirection" policy to prevent TZ redirection. Enable the policy to allow TZ redirection.
ASKER
Hi Alicia
Thanks for the response, we don't use terminal servers and the protocol isn't rdp it's pcoip. However I will check it out to be on the safe side.
Thanks
Thanks for the response, we don't use terminal servers and the protocol isn't rdp it's pcoip. However I will check it out to be on the safe side.
Thanks
ASKER
Issue fixed but thanks to everyone who contributed
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