There are two ways time is synced on windows machines NTP and NT5DS when a machine is joined to a domain the default type is NT5DS Windows
has a default ntp server set to time.windows.com but this will not be
used by machines on a domain unless they are changed to use NTP instead
of NT5DS. This setting is stored HKLM\SYSTEM\CurrentControlSet\Services\W32Time\Parameters\Type If you define a NTP server ( net time /setsntp:server.blah.corp) this setting will automatically be change to NTP If you remove the NTP server ( net time /setsntp ) this setting will automatically be change to NT5DS By default when the w32time server starts on a machine it will poll every 45 minutes. Articles |