How to increase frequency of time server synchronizations?
You can adjust it in Registry.
- start registry editor (regedit will do fine)
- go to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpClient
- edit value SpecialPollInterval.
SpecialPollInterval is defined in seconds. If you wish e.g. 1 hour just write 3600. You can calculate rest from here. Default is 604800 (7 days).