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VM "BIOS" Time

  • May 22, 2026
  • 3 replies
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G
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Hi,

I’ve got a question about where a VM on AHV get’s it’s time at boot-up from.

Background:  I was reviewing the event logs on a couple of windows servers, and looking at the bootup process.  Event times, start at UTC and then a bit through the boot-up it jumps an hour to GMT (Presumably when windows time starts, and syncs with the domain)  I’d prefer this not to happen, and would like the BIOS/Boot time to be GMT if possible.
 

Does the VM “BIOS”boot time come from the CVM which I’ve found the process to change the timezone for, or the Host which the recommended configuration is to leave at UTC?

Thanks in advance

 

G

Best answer by Kcmount

Hey,

You can configure this on the VM settings in prism.

There's options to default to cluster timezone or other.

Cheers,

 

Kim.

3 replies

Kcmount
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  • Kcmount
  • Vanguard
  • Answer
  • May 22, 2026

Hey,

You can configure this on the VM settings in prism.

There's options to default to cluster timezone or other.

Cheers,

 

Kim.

    J
    Forum|alt.badge.img+3

    as it is mentioned you can change it on VM level and you can change the timezone on cluster level as well :)

    G
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    • GilesB
    • Author
    • Adventurer
    • June 1, 2026

    Hey,

    You can configure this on the VM settings in prism.

    There's options to default to cluster timezone or other.

    Cheers,

     

    Kim.



    Cheers Kim, that’s perfect don’t quite know how I didn’t spot that.

    Now we just need to update all the VM’s in the cluster :-)​​​​​​​

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