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I have a windows instance up in EC2. I manually set the timezone to Pacific.

1) For some reason using window's built in time sync doesn't work in the instance...but whatever. I turn off automatic time syncing...

but 2) On reboot the time on the server changes! For example, if i reboot it at 4PM on Wednesday, when the server comes back up it will read 12 noon on Thursday!

As a result any access to Amazon's other services like SImpleDB fail because the timestamps generated are too far off the current time.

Has anyone seen this or figured this out?

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Go to this link on amazon's aws forum there is post by Nancy W. Abramson that might solve your problem. OR there is problem with AMD Hardware mentioned at in time-and-clock-issues-in-windows-based-ec2-instances blog post. Hope this help you.

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