W32tm

W32tm /?

W32tm command-line Help

W32tm /unregister

Unregisters the time service, and removes all configuration information from the registry.

w32tm /ntte <NT time epoch>

Converts a Windows NT system time, in (10^-7)s intervals from 0h 1-Jan 1601, into a readable format.

w32tm /resync

[/computer:<computer>]

[/nowait]

[/rediscover]

[/soft]

Tells a computer that it should resynchronize its clock as soon as possible, throwing out all accumulated error statistics.

computer:<computer>—Specifies the computer that should resynchronize. If a computer is not specified, the local computer will resynchronize.

nowait—Do not wait for the resynchronization to occur; return immediately. Otherwise, wait for the resynchronization to complete before returning.

rediscover—Redetect the network configuration and rediscover network sources; then, resynchronize.

soft—This option is only provided for compatibility with older time servers and will resynchronize using existing error statistics..

w32tm /config

[/computer:<target>]

[/update]

[/manualpeerlist:<peers>]

[/syncfromflags:<source>]

[/LocalClockDispersion:<seconds>]

[/reliable:(YES|NO)]

[/largephaseoffset:<milliseconds>]

computer:<target>—Adjusts the configuration of <target>. If a value is not specified, the default is the local computer.

update—Notifies the time service that the configuration has changed, causing the changes to take effect.

manualpeerlist:<peers>—Sets the manual peer list to <peers>, which is a space-delimited list of Domain Name System (DNS) and/or IP addresses. When you are specifying multiple peers, this option must be enclosed in quotation marks (“).

syncfromflags:<source>—Sets what sources the NTP client should synchronize from. <source> should be a comma-separated list of these keywords (not case sensitive):

• MANUAL— Include peers from the manual peer list.
  
  
• DOMHIER— Synchronize from a domain controller in the domain hierarchy.
  
  
• NO—Do not synchronize from any server.
  
  
• ALL—Synchronize from both manual and domain peers.
  
  

LocalClockDispersion:<seconds>—Configures the accuracy of the internal clock that W32time will assume when it cannot acquire time from its configured sources.

reliable:(YES|NO)—Set whether this computer is a reliable time source.

This setting is meaningful only on domain controllers.

• YES—This computer is a reliable time service.
  
  
• NO—This computer is not a reliable time service.
  
  

largephaseoffset:<milliseconds>—Sets the time difference between local time and network time that W32time will consider to be a spike.

w32tm /dumpreg

[/subkey:<key>]

[/computer:<target>]

Displays the values that are associated with a given registry key.

The default key is HKLM\System\CurrentControlSet\Services\W32Time

(the root key for the time service).

subkey:<key>—Displays the values that are associated with subkey <key> of the default key.

computer:<target>—Queries registry settings for computer <target>.

w32tm /debug {/disable | {/enable /file:<name> /size:<bytes> /entries:<value> [/truncate]}}

This parameter was first made available in the Windows Time client versions of Windows Vista and Windows Server 2008.

Enables or disables local computer Windows Time service private log.

disable—Disable the private log.

enable—Enable the private log.

• file:<name>—Specify the absolute file name.
  
  
• size:<bytes>—Specify the maximum size for circular logging.
  
  
• entries:<value>—Contains a list of flags, specified by number and separated by commas, that specify the types of information that should be logged. Valid numbers are 0 to 300. A range of numbers is valid, in addition to single numbers, such as 0 through 100,103,106. Value 0-300 is for logging all information.
  
  

truncate—Truncate the file if it exists.