To change the time update frequency requires a change in the registry.

1. Open regedit
2. Goto: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\W32Time\TimeProviders\NtpClient
3. Modify the key: SpecialPollInterval
   • The value corresponds to the interval between synchronisations in seconds. When entering, don’t forget to set your input as decimal, as defaults to hexadecimal (which will not match your value).
   • The default value is one week (604800).
   • To set 12 hours, for instance, the value would be 3600*12=43200
   • To set 1 hours, for instance, the value would be 3600*1 = 3600

Follow