Stopping automatic time sync

[JohanM]

Hi

I'm using Virtual Box 4.0.4 on a Windows 7 host with a Windows XP guest. I have guest additions installed on the guest. How can I stop the guest from automatically synchronizing its time with the host?

[Perryg]

Code: Select all

VBoxManage setextradata <vmname> “VBoxInternal/Devices/VMMDev/0/Config/GetHostTimeDisabled” “1?

[JohanM]

Many thanks

I have a second question: Is there some way to set the guest's time at startup? I.e. I want to automatically set the guest's clock to 3:14pm, 17 August 2011 when it starts up.

[Perryg]

With a batch file in the guest to run at startup.

[wacher]

See the command

VBoxManage modifyvm <name> -biossystemtimeoffset -<milliseconds>

maybe it is useful to you somehow.

[poulbak]

Remember, that Windows might have been set up to synchronize via internet.

[MASHA]

hi, i need a help, if someone gives the exact form of the command to write it in cmd if my vmname is MASHA, because im facing difficulty with the command, and i have windows 7 as OS.
Thank you very much

[Perryg]

Depending on the actual command you are wanting to run (there are several) just replace the <name> with MASHA

If the host is Windows you need to be in the directory that has VBoxManage.exe fro the command to work.