How can I check a system's current NTP configuration?

Question

I need to verify the current NTP configuration on some Windows systems. Ideally, I'd like to be able to do this via command line instead of navigating through configuration screens.

(I'm working on several different OS versions, and configuration screens tend to not always be in the same place across versions.)

I'm hoping to find a quick, memorable command that I can just punch into a CMD console to get the result. A batch file I can carry around with me will do just as well, though.

Specifically, I need the following:

• Show whether or not the system is configured to receive time from an NTP server.
• Show the NTP server(s) the system is receiving time from.
• Show the time of the last synchronization.
• Show the current time on the system.

What command(s) would be necessary to achieve these results?

Looking for a solution that's cross-compatible with Windows XP, 7, Server 2003, and Server 2008.

Answer 1

In the command line, type

w32tm /query /configuration
w32tm /query /status
Time /T 

w32tm /query /configuration gives you the configuration you have set up.

w32tm /query /status gives you information such as:

• stratum
• leap indicator
• precision
• last sync
• NTP server
• poll interval

time /T outputs the current system time.

Note: w32tm /query was first made available in the Windows Time client versions of Windows Vista, and Windows Server 2008. See Windows Time Service Tools and Settings

Answer 2

This answers your last question:

Open a command prompt and type exactly:

w32tm /stripchart /computer:NTPServerNameOrIP /dataonly /samples:x (how many returns you want)

It returns time and difference to NTP server time. If it returns time, error: 0x80072746 then that is not your NTP server.

An example of a command is below:

Answer 3

I tried:

w32tm /query /status

I got:

The command /query is unknown.

In a different machine, I got:

The following error occurred: The service has not been started. (0x80070426)

Then I tried:

reg QUERY [\\machine\]HKLM\SYSTEM\CurrentControlSet\Services\W32Time

I got:

ERROR: The system was unable to find the specified registry key or value.

Then I tried:

net time /querysntp

I got:

This computer is not currently configured to use a specific SNTP server.

In another machine, I got the help page, saying also:

The /QUERYSNTP and /SETSNTP options have been deprecated. Please use w32tm.exe to configure the Windows Time Service.

So, basically, the service was not running. Following these instructions, I did:

w32tm /unregister
w32tm /unregister
w32tm /register
net start w32time

Finally, all the above would work. (note: if net start fails, see below) Then I just needed to set my ntp up... I did it with:

w32tm /config /manualpeerlist:10.0.0.5 /syncfromflags:manual /reliable:yes /update

following instructions from here, but perhaps it could've been as easy as:

net time /setsntp:10.0.0.5

as instructed here. (10.0.0.5 being my local NTP server). If you're not using a local NTP server, you can use the generic one:

w32tm /config /manualpeerlist:pool.ntp.org /syncfromflags:manual /reliable:yes /update

Finally, you might need to do the following, which was not necessary for me:

w32tm /config /update
w32tm /resync /rediscover

---

NOTE: if net start w32time fails with error 1290 (The service start failed since one or more services in the same process have an incompatible service SID type setting) then follow the steps here:

w32tm /unregister
w32tm /register
sc config w32time type= own
net start w32time

Then follow as above.

---

NOTE 2: if the NTP service doesn't automatically start on reboot, it might be due to its start settings, as described here: depending on your windows, it might be set to start only when it joins a domain. You can check with:

sc qtriggerinfo w32time

If it's configured to start when you join a domain, and you don't have a domain set up in your machine, it will not start the service and set the time. It probably doesn't join a domain because you don't want it to. In any case, just change which trigger starts it. For example, to start when the machine has network (and therefore is able to access the server), do:

sc triggerinfo w32time start/networkon stop/networkoff

Answer 4

From the command line you can get the info like this:

reg QUERY [\\machine\]HKLM\SYSTEM\CurrentControlSet\Services\W32Time\Parameters
reg QUERY [\\machine\]HKLM\SYSTEM\CurrentControlSet\Services\W32Time\Config

Seems like that should be enough at least to get going in that direction, that is, if I understood your question. AFAIK, the 'reg' command works on all these different platforms so long as you have the right services running.

Answer 5

Use:

net stop w32time
w32tm /config /syncfromflags:manual /manualpeerlist:"0.it.pool.ntp.org 1.it.pool.ntp.org 2.it.pool.ntp.org 3.it.pool.ntp.org"
net start w32time
w32tm /config /update
w32tm /resync /rediscover

A .bat sample file is at https://gist.github.com/thedom85/dbeb58627adfb3d5c3af.

I also recommend this program: http://www.timesynctool.com/

Answer 6

Take a look at the w32tm command-line tool. It can set and query the configuration and report a /stripchart of the time offset with another computer.