Most administrators should configure Windows Time using Group Policy or w32tm /config rather than editing the registry directly.

Common registry location

HKLM\SYSTEM\CurrentControlSet\Services\W32Time

Frequently encountered areas include:

  • Config – service-wide settings.
  • Parameters – synchronisation type and peer list.
  • TimeProviders\NtpClient – client behaviour.
  • TimeProviders\NtpServer – server behaviour.

Typical values

  • Type – NT5DS or NTP.
  • NtpServer – configured peer list.
  • AnnounceFlags – advertising behaviour.
  • SpecialPollInterval – fixed polling interval when used.

Related information