Change the Network Time Update Interval
By default, Windows checks the network time server that you have configured in the Date & Time control panel to make sure that your clock is in sync once a week. On some machines, the clock drift is bad enough that you can see the time be off by a few seconds, so you’d like to update the time more often. To change the interval between network time updates, open regedit, and navigate to:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpClient
You’ll see a value called SpecialPollInterval on the right. Change the value to whatever you want the update interval to be, in seconds. (Make sure you click on “decimal” when you type your number in.)
For the changes to take affect, you can either reboot, or manually update the time from the Date & Time control panel. (After you manually update the time, you’ll have to close the control panel and open it again for the changes to be reflected in the GUI.)