W32TM.exe – Windows CMD Command

Time Service Utility.

The W32Time service is not a full-featured Network Time Protocol (NTP) solution that meets time-sensitive needs.

By default the Windows Time service (w32time) will synchronize it’s time once per week.
This can be extended to daily by setting a Scheduled Task to start the service and run w32tm /resync.

The options /debug, /packetinfo and /ipprotocol are available from Windows Vista and above.

/stripchart /packetinfo – will output three timestamps – The first hex number is byte order reversed NTP date, followed by the ANSI date (number of days since 1st Jan 1601) followed by the date/time in readable/local format.

The option /ntpte – will output three timestamps – The first hex number is an NTTE date (as also understood by w32tm.exe /ntte ), followed by the ANSI date (number of days since 1st Jan 1601) followed by the date/time in readable/local format.

The option /ntte – will output two timestamps – first the ANSI date (number of days since 1st Jan 1601) followed by the date/time in readable/local format.

A computer that is a member of a domain is configured by default to synchronize from the domain hierarchy, manually-specified synchronization is most useful for the forest root of the domain or for computers that are not joined to a domain.

Public NTP servers:

  • NIST Internet Time Service time.nist.gov – part of the NIST Physical Measurement Laboratory, maintains the standard for frequency and time interval for the United States.
  • NTP Pool project pool.ntp.org (or “0.pool.ntp.org 1.pool.ntp.org 2.pool.ntp.org 3.pool.ntp.org”) a big virtual cluster of timeservers.
  • time.windows.com – Microsoft’s own time server (not particularly reliable).

Examples:

Set the local Windows Time client to point to two different time servers, one named time.nist.gov and another named pool.ntp.org

W32TM.exe /config /manualpeerlist:"time.nist.gov pool.ntp.org" /syncfromflags:manual /update

Check the Windows Time client configuration from a client computer running Windows 7 that has a host name of PC64

W32TM.exe /query /computer:PC64 /configuration

Convert an NTTE formatted date into a readable format, if using hex, prefix with 0x:

W32TM.exe /ntte 0x01cf070000000000

W32TM.exe /ntte 130330610798428160

Convert an NTP formatted date into a readable format, if using hex, prefix with 0x:

W32TM.exe /ntpte 0x72386aa6917c63d8

You may also like...

5 Responses

  1. zoritoler imol says:

    I like what you guys are up too. Such clever work and reporting! Keep up the excellent works guys I?¦ve incorporated you guys to my blogroll. I think it will improve the value of my website 🙂

  2. zoritoler imol says:

    I¦ve been exploring for a little for any high quality articles or blog posts on this sort of space . Exploring in Yahoo I at last stumbled upon this site. Studying this information So i¦m glad to express that I have a very just right uncanny feeling I discovered just what I needed. I such a lot without a doubt will make sure to don¦t omit this web site and give it a glance regularly.

  3. gralion torile says:

    I’m not sure exactly why but this site is loading incredibly slow for me. Is anyone else having this issue or is it a issue on my end? I’ll check back later on and see if the problem still exists.

  4. gralion torile says:

    I have been absent for a while, but now I remember why I used to love this web site. Thanks , I will try and check back more often. How frequently you update your website?

  5. zortilonrel says:

    Good post and straight to the point. I don’t know if this is in fact the best place to ask but do you folks have any thoughts on where to employ some professional writers? Thx 🙂

Leave a Reply

Your email address will not be published.