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neildeadman
Asked: 2012-10-26 06:51:08 +0800 CST

Adjust frequency of Windows Time sync

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On Windows 2003 it is possible via the registry to set a custom interval for updates.

This is done via the following registry key:

HKLM\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpClient\SpecialPollInterval

After adjusting this key and then restarting the Windows Time service, when I update the time changes to (for my setting) one day from the time I clicked the update button.

What I don't know how to do is set the exact time at which the update occurs?

windows-server-2003

2 Answers

  1. If you really want to synchronize at a specific time, your best bet would be to set the automated interval to a very, very large number, and then use the windows scheduler to run w32tm /config /update. If I got this wrong, you can consult the official documentation.

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  2. You can specify the refresh interval only. It will refresh on that interval when the server is restarted, or the time service is restarted. You could make a scheduled task to invoke "w32tm /resync /nowait" to schedule the sync's to happen a predetermined times.

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